Updated on 2026/03/31

写真a

 
YAMAOKA Kazutaka
 
Organization
Institute for Space-Earth Environmental Research Center for Orbital and Suborbital Research Associate Professor
Graduate School
Graduate School of Science
Title
Associate Professor
Contact information
メールアドレス

Degree 1

  1. Doctor(Science) ( 2001.3   The University of Tokyo ) 

Research Interests 6

  1. Micro-satellite

  2. 検出器開発

  3. Sun. Gamma-ray Burst

  4. Detector development

  5. Black hole

  6. Scintillation detector

Research Areas 2

  1. Natural Science / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics  / Cosmic-ray Physics

  2. Natural Science / Astronomy  / X-ray Astronomy

Current Research Project and SDGs 4

  1. 国際宇宙ステーション実験CALETガンマ線バーストモニタの開発

  2. Development of solar neutron detectors for micro-satelluite

  3. 国際宇宙ステーション実験CALETによるガンマ線バーストの観測および重力波対応天体の探査

  4. X線観測によるブラックホール候補天体の状態遷移とジェットとの関係の研究

Research History 8

  1. Nagoya University   Institute for Space-Earth Environmental Research Center for Orbital and Suborbital Research   Associate Professor

    2025.9

  2. Nagoya University   Institute for Space-Earth Environmental Research Center for Orbital and Suborbital Research   Designated Associate Professor

    2022.4 - 2025.8

  3. Nagoya University   Institute of Materials and Systems for Sustainability Advanced Measurement Technology Center (AMTC) Elementary Particle Measurements Section   Designated Associate Professor

    2021.11 - 2022.3

  4. Nagoya University   Institute for Space-Earth Environmental Research Center for Orbital and Suborbital Research   Designated Associate Professor

    2018.11

  5. Nagoya University   Graduate School of Science Division of Particle and Astrophysical Sciences   Designated Associate Professor

    2013.3 - 2018.10

  6. 青山学院大学理工学部   物理数理学科   助教

    2007.4 - 2012.3

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    Country:Japan

  7. 青山学院大学理工学部   物理数理学科   助手

    2003.4 - 2007.3

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    Country:Japan

  8. 理化学研究所   牧島宇宙放射線研究室   協力研究員

    2001.4 - 2003.3

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    Country:Japan

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Education 3

  1. The University of Tokyo   Graduate School, Division of Science

    1999.4 - 2001.3

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    Country: Japan

  2. The University of Tokyo   Graduate School, Division of Science

    1996.4 - 1998.3

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    Country: Japan

  3. The University of Tokyo   Faculty of Science

    1991.4 - 1996.3

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    Country: Japan

Professional Memberships 3

  1. The Physical Society of Japan

  2. The Astronomical Society of Japan

  3. 日本地球惑星科学連合

 

Papers 248

  1. X-ray spectral and timing properties of the black hole binary XTE J1859+226 and their relation to jets Reviewed International coauthorship

    Kazutaka Yamaoka, Toshihiro Kawaguchi, Michael L McCollough, Ruben Farinelli, Sergei Trushkin

    Publications of the Astronomical Society of Japan   Vol. 77 ( 2 ) page: 237 - 259   2025.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/pasj/psae113

    Web of Science

    Scopus

  2. Charge-Sign Dependent Drift Effects in the Time-Lag of Cosmic-Ray Variation Relative to Solar Activity Observed with the Calorimetric Electron Telescope (CALET)

    Adriani, O; Akaike, Y; Asano, K; Asaoka, Y; Berti, E; Betti, P; Bigongiari, G; Binns, WR; Blum, LW; Bongi, M; Brogi, P; Bruno, A; Cannady, N; Castellini, G; Checchia, C; Cherry, ML; Collazuol, G; de Nolfo, GA; Ebisawa, K; Ficklin, AW; Fuke, H; Gonzi, S; Guzik, TG; Hams, T; Hibino, K; Ichimura, M; Israel, MH; Kasahara, K; Kataoka, J; Kataoka, R; Katayose, Y; Kato, C; Kato, Y; Kawanaka, N; Kawakubo, Y; Kobayashi, K; Kohri, K; Krawczynski, HS; Krizmanic, JF; Maestro, P; Marrocchesi, PS; Mattiazzi, M; Messineo, AM; Mitchell, JW; Miyake, S; Moiseev, AA; Mori, M; Mori, N; Motz, HM; Munakata, K; Nakahira, S; Negro, M; Nishimura, J; Okuno, S; Ormes, JF; Ozawa, S; Pacini, L; Papini, P; Picquenot, A; Rauch, BF; Ricciarini, SB; Sakai, K; Sakamoto, T; Sasaki, M; Shimizu, Y; Shiomi, A; Spillantini, P; Stolzi, F; Sugita, S; Takita, M; Tamura, T; Teramoto, M; Terasawa, T; Torii, S; Tsunesada, Y; Uchihori, Y; Vannuccini, E; Wefel, JP; Yamaoka, K; Yanagita, S; Yoshida, A; Yoshida, K; Zober, W

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   Vol. 2026 ( 3 )   2026.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/ptep/ptag025

    Web of Science

  3. Disentangling multiple gas kinematic drivers in the Perseus galaxy cluster Reviewed

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Trigo, MD; Done, C; Dotani, T; Ebisawa, K; Eckart, ME; Eckert, D; Eguchi, S; Enoto, T; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; Mccammon, D; Mcnamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, TG; Tümer, A; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Drury, I; Hlavacek-Larrondo, J; Meunier, J; Migkas, K; Shefler, L; Stancil, PC; Truong, N; Ueda, S; Vigneron, B; Zuhone, J; Zhang, CY; Heinrich, A; Zhuravleva, I; Bellomi, E

    NATURE   Vol. 650 ( 8101 ) page: 309 - 313   2026.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Nature  

    Galaxy clusters, the Universe’s largest halo structures, are filled with an X-ray-emitting gas with a temperature between 10 million and 100 million degrees. Their evolution is shaped by energetic processes such as feedback from supermassive black holes (SMBHs) and mergers with other cosmic structures<sup>1, 2–3</sup>. The imprints of these processes on gas kinematics remain largely unknown, restricting our understanding of energy conversion within clusters<sup>4</sup>. High-resolution spectral mapping with the X-Ray Imaging and Spectroscopy Mission (XRISM) observatory<sup>5</sup> offers a way forward<sup>6,7</sup>. Here we present XRISM kinematic measurements of the Perseus cluster, radially covering the extent of its cool core. We find direct evidence for at least two dominant drivers of gas motions operating on distinct physical scales: a small-scale driver in the inner approximately 60 kpc, probably associated with the SMBH feedback; and a large-scale driver in the outer core, powered by mergers. This finding suggests that, during the active phase, SMBH feedback drives gas motions, which, if fully dissipated into heat, could have a substantial role in offsetting radiative cooling losses in the Perseus core. Our study underscores the necessity of kinematic mapping observations of extended sources to robustly characterize the velocity fields and their role in the evolution of massive halos. It further offers a kinematic diagnostic for SMBH feedback models.

    DOI: 10.1038/s41586-025-10017-x

    Web of Science

    Scopus

    PubMed

  4. Chlorine and potassium enrichment in the Cassiopeia A supernova remnant Reviewed Open Access

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Diaz-Trigo, M; Done, C; Dotani, T; Ebisawa, K; Eckart, M; Eckert, D; Enoto, T; Eguchi, S; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; Garcia, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, TG; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Fujimoto, S; Matsunaga, K; Agarwal, M

    NATURE ASTRONOMY   Vol. 10 ( 1 ) page: 144 - 153   2026.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Nature Astronomy  

    The elements in the Universe are synthesized primarily in stars and supernovae, where nuclear fusion favours the production of even-Z elements. In contrast, odd-Z elements are less abundant and their yields are highly dependent on detailed stellar physics, making theoretical predictions of their cosmic abundance uncertain. In particular, the origin of odd-Z elements such as phosphorus (P), chlorine (Cl) and potassium (K), which are important for planet formation and life, is poorly understood. While the abundances of these elements in Milky Way stars are close to solar values, supernova explosion models systematically underestimate their production by up to an order of magnitude, indicating that key mechanisms for odd-Z nucleosynthesis are currently missing from theoretical models. Here we report the observation of P, Cl and K in the Cassiopeia A supernova remnant using high-resolution X-ray spectroscopy with X-Ray Imaging and Spectroscopy Mission data, with the detection of K at above the 6σ level being the most significant finding. Supernova explosion models of normal massive stars cannot explain the element abundance pattern, especially the high abundances of Cl and K, while models that include stellar rotation, binary interactions or shell mergers agree closely with the observations. Our observations suggest that such stellar activity plays an important role in supplying these elements to the Universe.

    DOI: 10.1038/s41550-025-02714-4

    Open Access

    Web of Science

    Scopus

  5. A Deep Learning Method for Event Recognition in CALET Data Open Access

    Picquenot A., Negro M., Cannady N., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Calorimetric Electron Telescope (CALET) is a powerful tool to observe cosmic-ray electrons between 1 GeV and 20 TeV. Its 30 radiation-length calorimeter enables total containment of electron-induced showers up to TeV energies, yielding an energy resolution of ~ 2% for these events. The CALET all-electron spectrum obtained using the first 7.5 years of data closely matches the one produced by the AMS-02, but in tension with DAMPE and Fermi-LAT in the 60 GeV - 2 TeV energy range. To investigate this tension, we explore the possibility of a bias in the event selection by developing an alternative classification method between electrons and protons using machine learning techniques instead of a deterministic algorithm. These unsupervised learning techniques are used to find clustering in the flight data events without training on simulated data. Here we present preliminary results from this analysis, and the performance of the trained method when applied to the simulated dataset.

    DOI: 10.22323/1.501.0113

    Open Access

    Scopus

  6. Energy spectra and flux ratios of BCNO cosmic-ray nuclei measured by CALET up to multi-TeV energies Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    We present the measurement of the individual energy spectra for boron, carbon, nitrogen and oxygen cosmic rays based on data collected by the CALorimetric Electron Telescope (CALET) during 10 years of operation on the International Space Station (ISS). These spectra are measured in the energy range from 10 GeV/n to several TeV/n using a fully calorimetric instrument, 1.3 nuclear interaction lengths thick, equipped with charge detectors providing single element resolution. The B, C and O spectra have been updated from our previously published results with more statistics and refined systematic uncertainty estimates, while the N energy spectrum is a new preliminary measurement. We also present the energy dependence of the B/C, B/O and N/O flux ratios, interpreting these results with fitting models including a spectral break in the power law of the diffusion coefficient and a constant residual propagation path length. Finally, we show the combined CNO flux up to hundreds of TeV in particle energy.

    DOI: 10.22323/1.501.0077

    Open Access

    Scopus

  7. Effects of the May 2024 Solar Storm on the Earth’s Radiation Belts Observed by CALET on the International Space Station Open Access

    Coleman A.R., Zober W.V., Negro M., Cannady N.W., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Calorimetric Electron Telescope (CALET), launched to the International Space Station in 2015, provides more than 9 years of continuous observation of the radiation environment at low Earth orbit. Using this dataset, we present 5 months of observations following the May 2024 solar storms and the effects they had on the radiation belts across three electron energy ranges (>1.5, >3.4, and >8.2MeV). We show that this event populated a long-lasting new structure of relativistic electrons extending to values of L shell below the slot region barrier of L = 2.8. Additionally, we observe the decay rates for this population as a function of energy and L shell to show the evolution of this structure over time.

    DOI: 10.22323/1.501.1293

    Open Access

    Scopus

  8. Direct measurement of the all-particle spectrum up to the PeV region with CALET on the International Space Station Open Access

    Akaike Y., Torii S., Kobayashi K., Adriani O., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The CALorimetric Electron Telescope (CALET) is a space-based experiment performing direct cosmic-ray observations aboard the International Space Station. Since the start of observations in October 2015, CALET has been continuously collecting scientific data for more than nine years. The instrument is capable of measuring individual cosmic-ray nuclei over a wide energy range, from a few tens of GeV up to the PeV scale, and can precisely identify the charge of each particle. In this study, we present all-particle cosmic-ray energy spectrum measured with CALET. The spectrum extends close to the 1 PeV region, where indirect measurements have covered higher energies. CALET’s direct measurements in this energy range provide valuable insights into the acceleration and propagation of high-energy cosmic rays. In particular, this spectrum is expected to provide new insights that complement indirect measurements of the Knee structure in the all-particle energy spectrum.

    DOI: 10.22323/1.501.0004

    Open Access

    Scopus

  9. Cosmic-ray modulation over the past 10 years observed with CALET on the International Space Station Open Access

    Coleman A.R., Zober W.V., Negro M., Cannady N.W., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The CALorimetric Electron Telescope (CALET) on the International Space Station has been measuring cosmic rays and gamma rays since October 2015. In addition to the high-energy trigger, CALET operates a low-energy electron (LEE) trigger at high geomagnetic latitudes, enabling measurements of 1–10 GeV electrons. Using this LEE trigger mode, CALET has observed the solar modulation of low-energy electrons and protons over nearly ten years, including the solar minimum and the solar maximum of the 25th solar cycle. The electron and positron flux exhibited a continuous decrease beginning in the ascending phase of the 25th solar cycle, reaching its lowest values in 2024. By comparing electron and proton count rates at the same average rigidity of 3.8 GV, we observed a clear charge-sign dependence of solar modulation. We also identified a clear hysteresis structure over the ascending and descending phases of the solar cycle. This hysteresis persisted across the solar maximum, covering the period of the solar magnetic polarity reversal. Furthermore, CALET detected Forbush decreases of electrons and protons in temporal agreement with ground-based neutron monitor observations. The larger decrease observed by CALET compared with ground-based neutron monitors suggests the rigidity dependence of solar modulation. These results demonstrate CALET’s capability to resolve charge-sign–dependent effects and transient phenomena in the CR propagation in the heliosphere, providing valuable input for models of solar modulation.

    DOI: 10.22323/1.501.1337

    Open Access

    Scopus

  10. Characterization of backscattering effects in CALET due to hadronic showers generated in the calorimeter Open Access

    Foresi A., Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The Calorimetric Electron Telescope (CALET) on board the International Space Station (ISS) is a space-based instrument consisting of a CHarge Detector (CHD) made of plastic scintillators, a thin (3 radiation lengths, X<inf>0</inf>) tungsten-scintillating fibre IMaging Calorimeter (IMC) for accurate particle tracking and identification, and a thick (27 X<inf>0</inf>, 1.3 nuclear interaction length) Total AbSorption Calorimeter (TASC) consisting of PWO crystal logs. Hadronic showers generated by cosmic-ray (CR) nuclei interacting in the TASC produce a large number of secondary particles that propagate backwards to the IMC and CHD. These backscattered particles are particularly dangerous because the resulting high multiplicity of hits in the detectors can lead to systematic errors in both the charge measurement and the reconstruction of the arrival direction of the primary CR. In this paper, we present a characterisation of the backscattering effect by comparing flight data collected during 10 years of CALET operation with simulations. By exploiting the fine granularity of the IMC, it is possible to study the multiplicity of hits, the deposited energy distributions and the lateral profiles of backscattered particles as a function of the energy deposited in the TASC by different nuclear species. This information can be used to refine Monte Carlo simulations to correctly reproduce the backscatter effect, and to improve the design of detectors for the next generation of CR space missions in order to reduce the impact of backscatter on their performance.

    DOI: 10.22323/1.501.0039

    Open Access

    Scopus

  11. CALET’s sensitivity to electron cosmic-ray spectral and anisotropy signatures of the Vela SNR Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring energy and arrival direction of electron+positron cosmic rays (CR) well into the TeV region. Due to energy loss in propagation, TeV-range CR electrons are expected to originate from only a few nearby and young supernova remnants (SNRs), foremost the Vela SNR, potentially giving rise to spectral features and flux anisotropy as signatures. To further CALET’s goal of finding a signature of Vela, a novel non-binned analysis algorithm quantifying the significance of a potential spectral hardening in the TeV region from the near-SNR contribution was developed, as well as an analysis method for anisotropy which enhances the signature significance by fixing the dipole axis towards the Vela SNR. The sensitivity of CALET to these spectral and anisotropy signatures was evaluated by using the new analysis methods on simulated event samples based on an interpretation model fitted to the currently measured electron and positron spectra. In addition to an explanation of the analysis methods, the expected significance of the spectral and anisotropy signatures as well as their combination are presented for a selection of representative conditions for the emission of electron CR by the nearby SNRs.

    DOI: 10.22323/1.501.0099

    Open Access

    Scopus

  12. CALET on-orbit operations and data calibration for 10 years observation on the International Space Station Open Access

    Kobayashi K., Tamura T., Akaike Y., Adriani O., Asano K., Asaoka Y., Berti E., Betti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The Calorimetric Electron Telescope (CALET) is conducting direct measurements of high-energy cosmic rays up to ~1 PeV to achieve a systematic understanding of cosmic ray acceleration and propagation. The detector, which consists of a charge detector, an imaging calorimeter, and a total absorption calorimeter, is located on the International Space Station. Data taken by the CALET onboard the International Space Station are transferred to JAXA and immediately forwarded to the Waseda CALET Operations Center. Data acquisition began in October 2015 and has continued stably without any major issues. We have collected data for 10 years so far. We summarize the detector operation for the 10-year observation. We also report the detector calibration based on the time-dependent corrections.

    DOI: 10.22323/1.501.0058

    Open Access

    Scopus

  13. Boosted-Decision-Trees based analysis for the measurement of light elements fluxes with CALET Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    High-precision measurements of proton and helium nuclei obtained from direct cosmic ray experiments provide valuable insight into the mechanisms of CR acceleration and propagation in the Galaxy. The space-based calorimeters, CALET as well as DAMPE, have recently revealed an additional spectral feature at tens of TeV, i.e. a softening of the flux, which is not predicted by traditional cosmic-ray models. However, the energy range in the multi-TeV region is still subject to large uncertainties, mainly due to the limited statistics of the available data. In this work, we present an analysis based on Boosted Decision Trees (BDT) to improve the statistical precision of light element fluxes by extending the fiducial acceptance of CALET data. The performance of BDT-based selections is evaluated and compared with standard and other machine-learning techniques, focusing mainly on helium nuclei.

    DOI: 10.22323/1.501.0083

    Open Access

    Scopus

  14. Extended measurement of the proton spectrum with CALET on the International Space Station Open Access

    Kobayashi K., Marrocchesi P.S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Calorimetric Electron Telescope (CALET) is conducting direct measurements of the main components of high-energy cosmic rays up to ~1 PeV to achieve a systematic understanding of cosmic-ray acceleration and propagation. The detector, consisting of a charge detector, an imaging calorimeter, and a total absorption calorimeter, is located on the International Space Station. The thickness of the calorimeter is equivalent to 30 radiation lengths and to ~1.3 proton interaction lengths. Data taking started in October 2015 and has continued stably without any major issues. We present the latest result of our proton spectrum analysis in the energy region from 50 GeV to 100 TeV. The energy resolution for protons is 30-40%. Compared to our previous result published in Physical Review Letters in 2022, the statistics have been increased by more than a factor of 1.5 and the energy range has been extended.

    DOI: 10.22323/1.501.0059

    Open Access

    Scopus

  15. Progress Toward Reproducing the GeV Galactic Center Excess Using CALET Data Open Access

    Coleman A.R., Zober W.V., Negro M., Cannady N.W., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The Calorimetric Electron Telescope (CALET) currently has more than nine years of high-energy γ-ray data that has not been fully explored. A region of particular interest for γ-ray astronomy is the Galactic Center (GC). Analysis of Fermi Large Area Telescope (LAT) data shows an excess of GeV γ rays from the GC region that could possibly be explained by the annihilation of weakly interacting massive particles (WIMPs) or an unresolved population of millisecond pulsars. Here we present the analysis of the Crab and Geminga using FermiPy and progress toward analysis of the Galactic Center using CALET data.

    DOI: 10.22323/1.501.0613

    Open Access

    Scopus

  16. Precise measurement of the electron plus positron spectrum with CALET on the International Space Station Open Access

    Akaike Y., Torii S., Adriani O., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The primary objectives of the CALorimetric Electron Telescope (CALET) mission are to search for possible nearby cosmic-ray sources and dark matter signatures through the precise measurement of the electron plus positron (all-electron) spectrum. The instrument is optimized to measure the all-electron spectrum well into the TeV region, with a total thickness of 30 radiation lengths at normal incidence and fine shower imaging capability. These capabilities provide an excellent energy resolution of 2% over a wide energy range from 20 GeV to 20 TeV, and enable highly precise measurements by suppressing hadron contamination to below a few percent. CALET has been accumulating scientific data for more than nine years on the International Space Station without major interruption. In this study, we will present the latest results of the all-electron spectrum with high-statistics data, and briefly discuss its interpretation regarding nearby electron sources at the TeV region.

    DOI: 10.22323/1.501.0005

    Open Access

    Scopus

  17. Nine years of gamma-ray burst observations with the CALET Gamma-ray Burst Monitor Open Access

    Coleman A.R., Zober W.V., Negro M., Cannady N.W., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The CALorimetric Electron Telescope (CALET), a scientific payload for cosmic-ray observations on the International Space Station, contributes instantaneous sky coverage in X-rays and gamma-rays for gamma-ray burst (GRB) observations. The CALET Gamma-ray Burst Monitor (CGBM), the secondary scientific instrument of CALET, can observe GRB prompt emissions in the energy range from 7 keV to 20 MeV. CGBM has operated without serious issues for over 9 years since the observation started in October 2015. As of April 2025, CGBM has been triggered 384 times by GRBs out of a total of 1,888 triggers. If we consider a threshold duration of 2 seconds, 51 of the CGBM GRBs were classified as short GRBs. As a result of spectral analysis for nine short GRBs, we found that CGBM detected short GRBs, of which E<inf>peak</inf> is comparable to that of GRB 170817A, the only case of a GRB associated with a binary neutron star merger. Although it depends on the spectra of GRBs, the CGBM requires fluxes that are at least a few times higher than that of GRB 170817A for detection and several times higher for spectral analysis in order to ensure sufficient statistics. We also have searched for electromagnetic counterparts of gravitational waves (GWs) reported by LIGO/Virgo/KAGRA. Although 208 GW events have been reported in O4 as of the end of April 2025, there were no significant signals associated with any GW events in O4 in the CGBM data.

    DOI: 10.22323/1.501.0937

    Open Access

    Scopus

  18. Measurement of Cr and Ti fluxes and sub-iron/iron flux ratios with CALET on the International Space Station Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The analysis of cosmic ray nuclei provides critical insights for a theoretical understanding of the acceleration and propagation mechanisms of charged particles in our Galaxy. A unique source of information on the average path length that cosmic rays travel before reaching Earth can be provided by the elements lying just below iron in the periodic table (sub-iron). Most of these elements are believed to be produced by the spallation of heavier nuclei as they propagate in the interstellar medium. The Calorimetric Electron Telescope (CALET), which has been operational on the International Space Station since 2015, has collected a substantial dataset comprising cosmic-ray (CR) iron and sub-iron events across a broad energy spectrum. In this contribution we present the measurements of the energy dependence of the titanium and chromium fluxes in cosmic rays, as their flux ratios to iron, in the energy interval from 10 GeV/n to 250 GeV/n. The measurements, based on data collected during eight years of operation, are reported with significantly enhanced precision compared to existing measurements, including a detailed assessment of systematic uncertainties. In addition to the sub-iron fluxes, an update of CALET’s analysis of the iron flux has been carried out up to 1.6 TeV/n.

    DOI: 10.22323/1.501.0136

    Open Access

    Scopus

  19. Improving electron/proton discrimination at high energies with CALET on the International Space Station Open Access

    Gonzi S., Berti E., Betti P., Pacini L., Adriani O., Akaike Y., Asano K., Asaoka Y., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The CALorimetric Electron Telescope (CALET), operating aboard the International Space Station since October 2015, is an experiment dedicated to high-energy astroparticle physics. The primary scientific goal of the experiment is the measurement of the electron+positron flux up to the multi-TeV region. At such high energies, proton contamination - coupled with limited statistics - is the main challenge for this measurement and good electron/proton discrimination can be carried out by using machine learning techniques. So far, we have tested and used only algorithms implemented in the ROOT TMVA package: in particular, the Boosted Decision Tree (BDT) algorithm leads to proton contamination below 10% up to 7.5 TeV with an 80% electron efficiency. In principle, better performance can be achieved by using Python packages, which offer a larger variety of machine learning algorithms and tuning parameters compared to TMVA. In this work, we will present a comparison of the performance obtained with the BDT algorithm implemented in TMVA and Python (XGBoost), while alternative approaches based on neural networks (e.g., Keras) will be explored in future studies.

    DOI: 10.22323/1.501.0011

    Open Access

    Scopus

  20. Highlights of 10 years of observations with CALET on the International Space Station Open Access

    Coleman A.R., Zober W.V., Negro M., Cannady N.W., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The CALorimetric Electron Telescope (CALET) is a high-energy astroparticle physics experiment in operation on the International Space Station (ISS) since 2015 with excellent and continuous performance. Designed to measure the spectra of electrons+positrons up to 20 TeV (and gamma rays up to 10 TeV), CALET is searching for possible nearby sources of high-energy electrons and dark matter signatures. Unexpected deviations from a power-law were observed not only for electrons (around 1 TeV), but also in the spectra of proton, helium, and heavier cosmic nuclei. With a precise measurement of their charge, cosmic nuclei can be identified and their spectra measured up to the PeV energy scale, contributing to the study of galactic cosmic-ray acceleration and propagation. CALET also measures the relative abundances of ultra heavy galactic cosmic rays (UHGRC) above atomic number Z=28 (nickel) and past Z=44 (ruthenium). Here, we present the highlights of the CALET latest science results stemming from almost 10 years of spectral observations of cosmic leptons, hadrons, and photons. Some recent results on the observations of solar modulation will also be included, together with the study of space-weather phenomena, X-ray and soft gamma-ray transients, and searches of electromagnetic counterparts of LIGO/Virgo gravitational wave events. Characterization of on-orbit performance, with approximately 20 million events above 10 GeV recorded per month, will be reported.

    DOI: 10.22323/1.501.1388

    Open Access

    Scopus

  21. Update of the Helium flux measurement with CALET on the International Space Station Open Access

    Brogi P., Kobayashi K., Mattiazzi M., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    The CALorimetric Electron Telescope (CALET) is a space-based calorimetric instrument, designed to carry out precise measurements of high energy cosmic rays. Installed on the Japanese Experiment Module – Exposed Facility on the ISS, it is collecting data with excellent performance and no significant interruptions since October 2015. We present the updated results of the direct measurement of the energy spectrum of cosmic-ray helium, based on more than 9 years of collected data, with an expected statistical increase of about 40% compared with the previously published measurement. The helium flux shows significant deviations from a single power law with a progressive hardening around a few hundred GeV followed by a softening in the multi-TeV region. The increase in statistics allows to extend the upper limit of the measured energy range and to improve the precision of the measurement itself in the high energy part of the spectrum.

    DOI: 10.22323/1.501.0019

    Open Access

    Scopus

  22. Updates to the results of the Ultra-Heavy Cosmic Ray Analysis with CALET on the International Space Station Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Calorimetric Electron Telescope (CALET), launched to the International Space Station in August 2015 and continuously operating since, measures cosmic-ray (CR) electrons, nuclei, and gamma rays. CALET, with its 30 radiation length deep calorimeter, measures particle energy, allowing for the determination of primary and secondary nuclei spectra and secondary to primary ratios of the more abundant CR nuclei through <inf>28</inf>Ni, while the main charge detector (CHD) can measure Ultra-Heavy (UH) CR nuclei up to and beyond <inf>40</inf>Zr, with our recently accepted results to ApJ showing consistency with ACE-CRIS, SuperTIGER, and HEAO-3 through <inf>44</inf>Ru. By using the special high-duty cycle (∼90%) UH trigger in conjunction with a data selection cut that requires events to pass into the Total Absorption Calorimeter (TASC), we have leveraged energy information in our charge assignment routine. Simulations using Geant4 and EPICS are then used to evaluate data cuts in the analysis and corrections. In this ICRC, we will show how these flight simulations align with data, how analysis selection cuts have been made, and how a set of corrections for instrument systematics was produced.

    DOI: 10.22323/1.501.0165

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  23. Updated Limits on Anisotropy in Electron+Positron Cosmic Rays from CALET Data Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Betti P., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Mattiazzi M., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Negro M., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 501   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring the energy spectrum and direction distribution of electron+positron cosmic-rays up to 20 TeV. The electron+positron events measured by CALET have been analyzed for a possible dipole anisotropy, which could be a signature of nearby SNR such as Vela. The used methods to derive limits on the anisotropy from the reconstructed events are explained, including the procedures to compensate for non-uniform sky exposure and inhomogeneous detector acceptance. Upper limits on the dipole moment as a function of lower threshold energy, with doubled statistics compared to of previously shown results, are presented.

    DOI: 10.22323/1.501.0100

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  24. XRISM high-resolution X-ray spectroscopy of Cygnus X-1: Highly ionized iron absorption structures Reviewed International coauthorship Open Access

    Yamada, S; Hell, N; Costantini, E; Adegoke, O; Brumback, M; Draghis, P; Ebisawa, K; Garcia, JA; Hodges-Kluck, E; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Miller, JM; Mizumoto, M; Mizuno, T; Ninoyu, K; Takahashi, H; Uchida, Y; Yamaoka, K; Zhang, SX

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 77 ( 6 ) page: 1210 - 1223   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Publications of the Astronomical Society of Japan  

    We present the first high-resolution X-ray spectral analysis of Cygnus X-1 using XRISM. The observation wa3s carried out from 2024 April 7 to 10, covering the orbital phase range 0.65–0.17 during its low/hard state. Taking advantage of the exceptional energy resolution of the Resolve instrument, we examined highly ionized iron absorption lines and characterized the ionization states, column densities, and line-of-sight velocities of the absorbing plasma. Spectral analysis revealed an ionization parameter of ξ ∼ 3, column densities of a few × 10<sup>21</sup> cm<sup>-2</sup>, and a blueshifted velocity of ∼100 km s<sup>-1</sup>. The observation was divided into two phases: before and after orbital phase φ<inf>orb</inf> = 0.9, corresponding to non-dipping and dipping intervals. While only weak absorption features were present before φ<inf>orb</inf> = 0.9, strong absorption by He-like and H-like Fe appeared during the dipping phase. We measured equivalent widths of 2.3, 0.4, and 1.2 eV for He-like Fe Kα and H-like Lyα<inf>1</inf> and Lyα<inf>2</inf>, respectively—demonstrating the capability of XRISM Resolve to securely detect narrow absorption features of only a few eV. These measurements trace the motion of the absorbing material and offer insight into the kinematics and spatial distribution of the wind in the vicinity of the black hole. These findings enhance our understanding of wind-fed accretion in Cygnus X-1 and highlight the importance of continued high-resolution X-ray observations to further constrain the physical properties of winds and accretion flows in high-mass X-ray binaries.

    DOI: 10.1093/pasj/psaf104

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  25. XRISM/Resolve view of Abell 2319: Turbulence, sloshing, and ICM dynamics Reviewed International coauthorship

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, G; Corrales, L; Costantini, E; Cumbee, R; Diaz Trigo, M; Done, C; Dotani, T; Ebisawa, K; Eckart, ME; Eckert, D; Eguchi, S; Enoto, T; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, J; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, SB; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; Mccammon, D; Mcnamara, B; Mernier, F; Miller, E; Miller, J; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, F; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, T; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Seppi, R; Aihara, I; Omiya, Y

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 77 ( 6 ) page: 1278 - 1289   2025.12

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    We present results from XRISM/Resolve observations of the core of the galaxy cluster Abell 2319, focusing on its kinematic properties. The intracluster medium (ICM) exhibits temperatures of approximately 8 keV across the core, with a prominent cold front and a high-temperature region (11 keV) in the north-west. The average gas velocity in the region around the brightest cluster galaxy (BCG) covered by two Resolve pointings is consistent with that of the BCG to within 40 km s and we found modest average velocity dispersion of 230-250 km s. On the other hand, spatially resolved spectroscopy reveals interesting variations. A blueshift of up to 230 km s is observed around the east edge of the cold front, where the gas with the lowest specific entropy is found. The region further south inside the cold front shows only a small velocity difference from the BCG; however, its velocity dispersion is enhanced to 400 km s, implying the development of turbulence. These characteristics indicate that we are observing sloshing motion with some inclination angle following BCG and that gas phases with different specific entropy participate in sloshing with their own velocities, as expected from simulations. No significant evidence for a high-redshift ICM component associated with the subcluster Abell 2319B was found in the region covered by the current Resolve pointings. These results highlight the importance of sloshing and turbulence in shaping the internal structure of Abell 2319. Further deep observations are necessary to better understand the mixing and turbulent processes within the cluster.

    DOI: 10.1093/pasj/psaf109

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  26. XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters Reviewed International coauthorship

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Diaz Trigo, MD; Done, C; Dotani, T; Ebisawa, K; Eckart, ME; Eckert, D; Eguchi, S; Enoto, T; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, T; Tümer, A; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, S; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Breuer, JP; Chakraborty, P; Ettori, S; Fabian, A; Heinrich, A; Kondo, M; HLavacek-Larrondo, J; McCall, H; Nulsen, P; Rose, T; Russell, H; Sarkar, A; Scannapieco, E; Suda, K; Sun, M; Tamhane, P; Truong, N; Werner, N; Zhang, CY

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 994 ( 1 )   2025.11

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    DOI: 10.3847/2041-8213/ae17ad

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  27. Comparing XRISM Cluster Velocity Dispersions with Predictions from Cosmological Simulations: Are Feedback Models Too Ejective? Reviewed International coauthorship

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Diaz Trigo, M; Done, C; Dotani, T; Ebisawa, K; Eckart, ME; Eckert, D; Eguchi, S; Enoto, T; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, T; Tümer, A; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, S; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Cui, WG; Ettori, S; Grayson, S; Heinrich, A; McCall, H; Nelson, D; Okabe, N; Omiya, Y; Sarkar, A; Scannapieco, E; Sun, M; Tanaka, K; Truong, N; Wik, DR; Zhang, CY; ZuHone, J

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 993 ( 1 )   2025.11

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    DOI: 10.3847/2041-8213/ae100c

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  28. Stratified wind from a super-<i>Eddington</i> X-ray binary is slower than expected Reviewed International coauthorship Open Access

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Trigo, MD; Done, C; Dotani, T; Ebisawa, K; Eckart, M; Eckert, D; Enoto, T; Eguchi, S; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; Garcia, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, TG; Tümer, A; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Neilsen, J; Tomaru, R; Mehdipour, M

    NATURE   Vol. 646 ( 8083 ) page: 57 - 61   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Nature  

    Accretion disks in strong gravity ubiquitously produce winds, seen as blueshifted absorption lines in the X-ray band of both stellar mass X-ray binaries (black holes and neutron stars)<sup>1, 2, 3–4</sup> and supermassive black holes<sup>5</sup>. Some of the most powerful winds (termed Eddington winds) are expected to arise from systems in which radiation pressure is sufficient to unbind material from the inner disk (L ≳ L<inf>Edd</inf>). These winds should be extremely fast and carry a large amount of kinetic power, which, when associated with supermassive black holes, would make them a prime contender for the feedback mechanism linking the growth of those black holes with their host galaxies<sup>6</sup>. Here we show the XRISM Resolve spectrum of the galactic neutron star X-ray binary, GX 13+1, which reveals one of the densest winds ever seen in absorption lines. This Compton-thick wind significantly attenuates the flux, making it appear faint, although it is intrinsically more luminous than usual (L ≳ L<inf>Edd</inf>). However, the wind is extremely slow, more consistent with the predictions of thermal-radiative winds launched by X-ray irradiation of the outer disk than with the expected Eddington wind driven by radiation pressure from the inner disk. This puts new constraints on the origin of winds from bright accretion flows in binaries, but also highlights the very different origin required for the ultrafast (v ~ 0.3c) winds seen in recent Resolve observations of a supermassive black hole at a similarly high Eddington ratio<sup>7</sup>.

    DOI: 10.1038/s41586-025-09495-w

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  29. Concept of high-z gamma-ray bursts unraveling the dark ages and extreme space-time mission-HiZ-GUNDAM Reviewed International coauthorship Open Access

    Yonetoku, D; Doi, A; Mihara, T; Matsuhara, H; Sakamoto, T; Tsumura, K; Ioka, K; Arimoto, M; Ando, Y; Enoto, T; Fujimoto, K; Goto, H; Hiraga, J; Kawai, N; Kondo, R; Kurosawa, S; Maeda, Y; Mitsuishi, I; Murakami, T; Nagataka, I; Nakagawa, Y; Nakajima, H; Ogino, N; Sato, M; Sato, T; Sawano, T; Serino, M; Shen, HC; Sugita, S; Sugizaki, M; Takahashi, S; Tamagawa, T; Tamura, K; Tanaka, T; Tanimori, T; Tashiro, MS; Tomida, H; Uchida, H; Ueda, S; Yamaoka, K; Yamauchi, M; Yatsu, Y; Yoshida, A; Akitaya, H; Fukui, A; Fukui, H; Hashimoto, R; Hori, T; Ita, Y; Kageyama, R; Kawabata, K; Matsuura, S; Miyasaka, A; Motohara, K; Narita, N; Noda, H; Okita, H; Sano, K; Shinozaki, K; Tajima, S; Urata, Y; Wada, T; Yamashita, H; Yanagisawa, K; Yoshida, M; Gunji, S; Togashi, T; Sato, R; Watanabe, K; Niinuma, H; Bando, N; Jikuya, I; Minesugi, K; Miyazaki, Y; Kono, Y; Takase, N; Nakatsubo, S; Kaga, T; Asano, K; Inayoshi, K; Inoue, S; Ito, H; Izumiura, H; Kawanaka, N; Kinugawa, T; Kisaka, S; Kiuchi, K; Kyutoku, K; Matsumoto, J; Mizuta, A; Murase, K; Nagakura, H; Nagataki, S; Nakada, Y; Nakamura, T; Niino, Y; Suwa, Y; Takahashi, K; Tanaka, T; Toma, K; Totani, T; Yamazaki, R; Yokoyama, J; Harikane, Y; Tanaka, M; Kimura, SS; Kimura, M; Umeda, H

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 11 ( 4 )   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Astronomical Telescopes Instruments and Systems  

    HiZ-GUNDAM is a candidate for JAXA’s competitive medium-class mission program, with its concept approved by ISAS/JAXA in 2018. This proposed satellite aims to play a leading role in time-domain astronomy in the 2030s by pursuing two primary scientific goals: (1) probing the early universe through the detection of high-redshift gamma-ray bursts (GRBs) and (2) enabling the rapid identification of X-ray and optical-near-infrared counterparts of multimessenger sources. To achieve these objectives, HiZ-GUNDAM is equipped with two key instruments. A wide-field X-ray monitor, EAGLE, utilizes a micropore optics array and a focal plane imaging sensor to observe transients across ∼0.5sr in the 0.4 to 4 keV energy range. To follow up on this observation, an optical–near-infrared telescope, MONSTER, features a 30 cm aperture and conducts simultaneous five-band photometry over the 0.5 to 2.5μm wavelength range. It employs a Kösters-type prism for multi-band photometry to follow up on transients detected by the EAGLE. A sun-synchronous dawn–dusk orbit has been selected to ensure thermal stability for the MONSTER. We present a comprehensive overview of the HiZ-GUNDAM mission concept. The mission is expected to make a significant contribution to our understanding of cosmic evolution through observations of high-redshift GRBs, as well as to the identification of the multiwavelength properties of multimessenger sources by enhancing the observational capabilities for transient searches. The specifications and concepts discussed herein are subject to refinement as the mission progresses.

    DOI: 10.1117/1.JATIS.11.4.044002

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  30. Initial operations of the Soft X-ray Imager onboard XRISM Reviewed International coauthorship Open Access

    Suzuki, H; Yoneyama, T; Kobayashi, SB; Noda, H; Uchida, H; Nobukawa, KK; Hagino, K; Mori, K; Tomida, H; Nakajima, H; Tanaka, T; Murakami, H; Uchiyama, H; Nobukawa, M; Kanemaru, Y; Otsuka, Y; Yokosu, H; Yonemaru, W; Nakano, H; Ichikawa, K; Takemoto, R; Matsushima, T; Yoshimoto, M; Aoyagi, M; Shima, K; Aoki, Y; Ito, Y; Fukuda, K; Kiyama, H; Aoki, D; Fujisawa, K; Shimizu, Y; Higuchi, M; Fukuda, M; Sakamoto, N; Azuma, R; Inoue, S; Kohmura, T; Yamauchi, M; Hatsukade, I; Matsumoto, H; Odaka, H; Mizuno, T; Yoshida, T; Maeda, Y; Ishida, M; Tsuru, TG; Yamaoka, K; Okajima, T; Hayashi, T; Hiraga, JS; Ozaki, M; Dotani, T; Tsunemi, H; Hayashida, K

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 11 ( 4 )   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Astronomical Telescopes Instruments and Systems  

    X-Ray Imaging and Spectroscopy Mission (XRISM) is an astronomical satellite with the capability of high-resolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide field-of-view imaging with the charge-coupled device (CCD) camera, Xtend. Xtend consists of the mirror assembly (X-ray Mirror Assembly) and detector, Soft X-ray Imager (SXI). The SXI is composed of CCDs, analog and digital electronics, and a mechanical cooler. After the successful launch on September 6, 2023 (UT) and subsequent critical operations, the mission instruments were turned on and set up. The CCDs have been kept at the designed operating temperature of −110°C after the electronics and cooling system were successfully set up. During the initial operation phase, which continued for more than a month after the critical operations, we verified the observation procedure, stability of the cooling system, all the observation options with different imaging areas and/or timing resolutions, and time-tagged and automated operations, including those for South Atlantic Anomaly passages. We optimized the operation procedure and observation parameters, including the cooler settings, imaging areas for the small window modes, and the event selection algorithm. We summarize our policy and procedure of the initial operations for the SXI. We also report on a couple of issues we faced during the initial operations and lessons learned from them.

    DOI: 10.1117/1.JATIS.11.4.042003

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  31. Delving into the depths of NGC 3783 with XRISM: II. Cross-calibration of X-ray instruments used in the large, multi-mission observational campaign Reviewed International coauthorship Open Access

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Trigo, MD; Done, C; Dotani, T; Ebisawa, K; Eckart, ME; Eckert, D; Eguchi, S; Enoto, T; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishi, D; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kanemaru, Y; Kara, E; Katsuda, S; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Porter, FS; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, T; Tümer, A; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Diez, C; Fukumura, K; Li, C; Mehdipour, M; Panagiotou, C; Signorini, M; Zhao, KQ

    ASTRONOMY & ASTROPHYSICS   Vol. 702   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Astronomy and Astrophysics  

    Context. Accurate X-ray spectroscopic measurements are fundamental for deriving basic physical parameters of the most abundant baryon components in the Universe. The plethora of X-ray observatories currently operational enables a panchromatic view of the high-energy emission of celestial sources. However, uncertainties in the energy-dependent calibration of the instrument transfer functions (e.g. the effective area, energy redistribution, or gain) can limit – and historically, did limit – the accuracy of X-ray spectroscopic measurements. Aims. We revised the status of the cross-calibration among the scientific payload on board four operation missions: Chandra, NuSTAR, XMM-Newton, and the recently launched XRISM. XRISM carries the micro-calorimeter Resolve, which yields the best energy resolution at energies ≥2 keV. For this purpose, we used the data from a 10-day-long observational campaign targeting the nearby active galactic nucleus NGC 3783, carried out in July 2024. Methods. We present a novel model-independent method for assessing the cross-calibration status that is based on a multi-node spline of the spectra with the highest-resolving power (XRISM/Resolve in our campaign). We also estimated the impact of the intrinsic variability of NGC 3783 on the cross-calibration status due to the different time coverages of participating observatories and performed an empirical reassessment of the Resolve throughput at low energies. Results. Based on this analysis, we derived a set of energy-dependent correction factors of the observed responses, enabling a statistically robust analysis of the whole spectral dataset. They will be employed in subsequent papers describing the astrophysical results of the campaign.

    DOI: 10.1051/0004-6361/202556000

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  32. Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM Reviewed International coauthorship Open Access

    Audard M., Awaki H., Ballhausen R., Bamba A., Behar E., Boissay-Malaquin R., Brenneman L., Brown G.V., Corrales L., Costantini E., Cumbee R., Díaz Trigo M., Done C., Dotani T., Ebisawa K., Eckart M.E., Eckert D., Eguchi S., Enoto T., Ezoe Y., Foster A., Fujimoto R., Fujita Y., Fukazawa Y., Fukushima K., Furuzawa A., Gallo L.C., García J.A., Gu L., Guainazzi M., Hagino K., Hamaguchi K., Hatsukade I., Hayashi K., Hayashi T., Hell N., Hodges-Kluck E., Hornschemeier A., Ichinohe Y., Ishi D., Ishida M., Ishikawa K., Ishisaki Y., Kaastra J., Kallman T., Kara E., Katsuda S., Kanemaru Y., Kelley R., Kilbourne C., Kitamoto S., Kobayashi S., Kohmura T., Kubota A., Leutenegger M.A., Loewenstein M., Maeda Y., Markevitch M., Matsumoto H., Matsushita K., McCammon D., McNamara B., Mernier F., Miller E., Miller J.M., Mitsuishi I., Mizumoto M., Mizuno T., Mori K., Mukai K., Murakami H., Mushotzky R., Nakajima H., Nakazawa K., Ness J.U., Nobukawa K., Nobukawa M., Noda H., Odaka H., Ogawa S., Ogorzalek A., Okajima T., Ota N., Paltani S., Petre R., Plucinsky P., Porter F.S., Pottschmidt K., Sato K., Sato T., Sawada M., Seta H., Shidatsu M., Simionescu A., Smith R., Suzuki H., Szymkowiak A., Takahashi H., Takeo M., Tamagawa T.

    Publications of the Astronomical Society of Japan   Vol. 77   page: S242 - S253   2025.9

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    We report on a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve. Abell 2029, known for its cool core and relaxed X-ray morphology, provides an excellent opportunity to investigate the influence of gas motions beyond the central region. Expanding upon prior studies that revealed low turbulence and bulk motions within the core, our analysis covers regions out to the scale radius (670 kpc) based on three radial pointings extending from the cluster center toward the northern side. We obtain accurate measurements of bulk and turbulent velocities along the line of sight. The results indicate that non-thermal pressure accounts for no more than 2% of the total pressure at all radii, with a gradual decrease outward. The observed radial trend differs from many numerical simulations, which often predict an increase in non-thermal pressure fraction at larger radii. These findings suggest that deviations from hydrostatic equilibrium are small, leading to a hydrostatic mass bias of around 2% across the observed area.

    DOI: 10.1093/pasj/psaf055

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  33. Thermal and kinematic properties of ejecta in SN1987A revealed by XRISM Reviewed International coauthorship Open Access

    Audard M., Awaki H., Ballhausen R., Bamba A., Behar E., Boissay-Malaquin R., Brenneman L., Brown G.V., Corrales L., Costantini E., Cumbee R., Díaz Trigo M., Done C., Dotani T., Ebisawa K., Eckart M.E., Eckert D., Enoto T., Eguchi S., Ezoe Y., Foster A., Fujimoto R., Fujita Y., Fukazawa Y., Fukushima K., Furuzawa A., Gallo L.C., García J.A., Gu L., Guainazzi M., Giuffrida R., Hagino K., Hamaguchi K., Hatsukade I., Hayashi K., Hayashi T., Hell N., Hodges-Kluck E., Hornschemeier A., Ichinohe Y., Ishi D., Ishida M., Ishikawa K., Ishisaki Y., Kaastra J., Kallman T., Kara E., Katsuda S., Kanemaru Y., Kelley R., Kikuchi R., Kilbourne C., Kitamoto S., Kobayashi S., Kohmura T., Kubota A., Leutenegger M.A., Loewenstein M., Maeda Y., Markevitch M., Matsumoto H., Matsushima T., Matsushita K., McCammon D., McNamara B., Mernier F., Miller E.D., Miller J.M., Mitsuishi I., Mizumoto M., Mizuno T., Mori K., Mukai K., Murakami H., Mushotzky R., Nakajima H., Nakazawa K., Ness J.U., Nobukawa K., Nobukawa M., Noda H., Odaka H., Ogawa S., Ogorzalek A., Okajima T., Ota N., Paltani S., Petre R., Plucinsky P., Porter F.S., Pottschmidt K., Sato K., Sato T., Sawada M., Seta H., Shidatsu M., Shimoda J., Simionescu A., Smith R.K., Suzuki H.

    Publications of the Astronomical Society of Japan   Vol. 77 ( Supplement_1 ) page: S193 - S208   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Publications of the Astronomical Society of Japan  

    We present an analysis of high-resolution spectra from the shock-heated plasmas in SN 1987A, based on an observation using the Resolve instrument onboard the X-Ray Imaging and Spectroscopy Mission (XRISM). The 1.7-10 keV Resolve spectra are accurately represented by a single-component, plane-parallel shock plasma model, with a temperature of keV and an ionization parameter of ×. The Resolve spectra are also well reproduced by the 3D magneto-hydrodynamic simulation presented by Orlando et al. (2020, A&A, 636, A22) suggesting substantial contribution from the ejecta. The metal abundances obtained with Resolve align with the Large Magellanic Cloud value, indicating that the X-rays in 2024 originate from "non-metal-rich"shock-heated ejecta and the reverse shock has not reached the inner metal-rich region of ejecta. Doppler widths of the atomic lines from Si, S, and Fe correspond to velocities of 1500-1700 km s, where the thermal broadening effects in this non-metal-rich plasma are negligible. Therefore, the line broadening seen in Resolve spectra is determined by the large bulk motion of ejecta. For reference, we determined a upper limit on non-thermal emission from a pulsar wind nebula at erg cm s in the 2-10 keV range, aligning with NuSTAR findings by Greco et al. (2022, ApJ, 931, 132). Additionally, we searched for the Sc K line feature and found a upper limit of photons cm s, which translates to an initial Ti mass of approximately, consistent with previous X-ray to soft gamma-ray observations (Boggs et al. 2015, Science, 348, 670; Grebenev et al. 2012, Nature, 490, 373; Leising 2006, ApJ, 651, 1019).

    DOI: 10.1093/pasj/psaf056

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  34. In-orbit performance of the soft X-ray imaging telescope Xtend aboard XRISM Reviewed International coauthorship

    Uchida, H; Mori, K; Tomida, H; Nakajima, H; Noda, H; Tanaka, T; Murakami, H; Suzuki, H; Kobayashi, SB; Yoneyama, T; Hagino, K; Nobukawa, KK; Uchiyama, H; Nobukawa, M; Matsumoto, H; Tsuru, TG; Yamauchi, M; Hatsukade, I; Odaka, H; Kohmura, T; Yamaoka, K; Yoshida, T; Kanemaru, Y; Ishi, D; Dotani, T; Ozaki, M; Tsunemi, H; Miyazaki, K; Kusunoki, K; Otsuka, Y; Yokosu, H; Yonemaru, W; Ichikawa, K; Nakano, H; Takemoto, R; Matsushima, T; Urase, R; Kurashima, J; Fuchi, K; Hayakawa, K; Fukuda, M; Inoue, S; Aoki, Y; Takayama, K; Sako, T; Yoshimoto, M; Shima, K; Higuchi, M; Ninoyu, K; Aoki, D; Tsunomachi, S; Okajima, T; Ishida, M; Maeda, Y; Hayashi, T; Tamura, K; Boissay-Malaquin, R; Sato, T; Takeo, M; Miyamoto, A; Matsumoto, G; Eckart, ME; Hell, N; Leutenegger, MA; Hayashida, K

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 77   page: S23 - S38   2025.9

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    We present a summary of the in-orbit performance of the soft X-ray imaging telescope Xtend onboard the X-Ray Imaging and Spectroscopy Mission (XRISM), based on in-flight observation data, including first-light celestial objects, calibration sources, and results from the cross-calibration campaign with other currently operating X-ray observatories. XRISM/Xtend has a large field of view of 38′.5 × 38′.5, covering an energy range of 0.4–13keV, as demonstrated by the first-light observation of the galaxy cluster Abell 2319. It also features an energy resolution of 170–180eV at 6keV, which meets the mission requirement and enables us to resolve He-like and H-like FeKα lines. Throughout the observation during the performance verification phase, we confirm that two issues identified in the Soft X-ray Imager (SXI) onboard the previous Hitomi mission—light leakage and crosstalk events—are addressed and suppressed in the case of Xtend. A joint cross-calibration observation of the bright quasar 3C 273 results in an effective area measured to be ∼420cm<sup>2</sup> at1.5keV and ∼310cm<sup>2</sup> at 6.0keV, which matches values obtained in ground tests. We also continuously monitor the health of Xtend by analyzing overclocking data, calibration source spectra, and day-Earth observations; the readout noise is stable and low, and contamination is negligible even one year after launch. A low background level compared with other major X-ray instruments onboard satellites, combined with the largest grasp (Ω<inf>eff</inf> ∼ 60$cm<sup>2</sup> deg<sup>2</sup>) of Xtend, will not only support Resolve analysis, but also enable significant scientific results on its own. This includes near-future follow-up observations and transient searches in the context of time-domain and multi-messenger astrophysics.

    DOI: 10.1093/pasj/psaf030

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  35. Soft X-ray Imager of the Xtend system on board XRISM Reviewed International coauthorship Open Access

    Noda, H; Mori, K; Tomida, H; Nakajima, H; Tanaka, T; Murakami, H; Uchida, H; Suzuki, H; Kobayashi, SB; Yoneyama, T; Hagino, K; Nobukawa, K; Uchiyama, H; Nobukawa, M; Matsumoto, H; Tsuru, TG; Yamauchi, M; Hatsukade, I; Odaka, H; Kohmura, T; Yamaoka, K; Yoshida, T; Kanemaru, Y; Hiraga, J; Dotani, T; Ozaki, M; Tsunemi, H; Sato, J; Takaki, T; Terada, Y; Miyazaki, K; Kusunoki, K; Otsuka, Y; Yokosu, H; Yonemaru, W; Ichikawa, K; Nakano, H; Takemoto, R; Matsushima, T; Urase, R; Kurashima, J; Fuchi, K; Hayakawa, K; Fukuda, M; Kamei, T; Asahina, Y; Inoue, S; Amano, Y; Aoki, Y; Ito, Y; Kamatani, T; Takayama, K; Sako, T; Yoshimoto, M; Shima, K; Higuchi, M; Ninoyu, K; Aoki, D; Tsunomachi, S; Hayashida, K

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 77   page: S10 - S22   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Publications of the Astronomical Society of Japan  

    The Soft X-ray Imager (SXI) is the X-ray charge-coupled device (CCD) camera for the soft X-ray imaging telescope Xtend installed on the X-ray Imaging and Spectroscopy Mission (XRISM), which was adopted as a recovery mission for the Hitomi X-ray satellite and was successfully launched on 2023 September 7 (JST). In order to maximize the science output of XRISM, we set the requirements for Xtend and found that the CCD set employed in the Hitomi/SXI or similar, i.e., a 2 × 2 array of back-illuminated CCDs with a 200 μm-thick depletion layer, would be practically best among the available choices, when used in combination with the X-ray mirror assembly. We designed the XRISM/SXI, based on the Hitomi/SXI, to have a wide field of view of 38′ × 38′ in the 0.4–13keV energy range. We incorporated several significant improvements from the Hitomi/SXI into the CCD chip design to enhance the optical-light blocking capability and to increase the cosmic-ray tolerance, reducing the degradation of charge-transfer efficiency in orbit. By the time of the launch of XRISM, the imaging and spectroscopic capabilities of the SXI had been extensively studied in on-ground experiments with the full flight-model configuration or equivalent setups and confirmed to meet the requirements. The optical blocking capability, the cooling and temperature control performance, and the transmissivity and quantum efficiency to incident X-rays of the CCDs were also all confirmed to meet the requirements. Thus, we successfully completed the pre-flight development of the SXI for XRISM.

    DOI: 10.1093/pasj/psaf011

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  36. X-Ray Imaging and Spectroscopy Mission Reviewed International coauthorship Open Access

    Makoto Tashiro, Richard Kelley, Shin Watanabe, Hironori Maejima, Lillian Reichenthal, Kenichi Toda, Leslie Hartz, Andrea Santovincenzo, Kyoko Matsushita, Hiroya Yamaguchi, Robert Petre, Brian Williams, Matteo Guainazzi, Elisa Costantini, Yoh Takei, Yoshitaka Ishisaki, Ryuichi Fujimoto, Joy Henegar-Leon, Gary Sneiderman, Hiroshi Tomida, Koji Mori, Hiroshi Nakajima, Yukikatsu Terada, Matthew Holland, Michael Loewenstein, Eric Miller, Makoto Sawada, Timothy Kallman, Jelle Kaastra, Chris Done, Teruaki Enoto, Aya Bamba, Lia Corrales, Yoshihiro Ueda, Erin Kara, Irina Zhuravleva, Yutaka Fujita, Yoshitaka Arai, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Chris Baluta, Nobutaka Bando, Ehud Behar, Thomas Bialas, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V Brown, Meng Chiao, Renata Cumbee, Cor de Vries, Jan-Willem den Herder, María Díaz Trigo, Michael DiPirro, Tadayasu Dotani, Jacobo Ebrero Carrero, Ken Ebisawa, Megan Eckart, Dominique Eckert, Satoshi Eguchi, Yuichiro Ezoe, Carlo Ferrigno, Adam Foster, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi C Gallo, Javier Garcia Martinez, Nathalie Gorter, Martin Grim, Liyi Gu, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Takafumi Horiuchi, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Chisato Ikuta, Ryo Iizuka, Daiki Ishi, Manabu Ishida, Naoki Ishihama, Kumi Ishikawa, Kosei Ishimura, Tess Jaffe, Satoru Katsuda, Yoshiaki Kanemaru, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice A Leutenegger, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McLaughlin, Brian McNamara, François Mernier, Joseph Miko, Jon M Miller, Kenji Minesugi, Shinji Mitani, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Kazuhiro Nakazawa, Chikara Natsukari, Jan-Uwe Ness, Kenichiro Nigo, Mari Nishiyama, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, Paul Plucinsky, F Scott Porter, Katja Pottschmidt, Jose Antonio Quero, Takahiro Sasaki, Kosuke Sato, Rie Sato, Toshiki Sato, Yoichi Sato, Hiromi Seta, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Russel Shipman, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall K Smith, Yang Soong, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Shinichiro Uno, Jacco Vink, Michael Witthoeft, Rob Wolfs, Satoshi Yamada, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita

    Publications of the Astronomical Society of Japan   Vol. 77 ( Supplement_1 ) page: S1 - S9   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    Abstract

    The X-Ray Imaging and Spectroscopy Mission (XRISM) is a joint mission between the Japan Aerospace Exploration Agency (JAXA) and the National Aeronautics and Space Administration (NASA) in collaboration with the European Space Agency (ESA). In addition to the three space agencies, universities and research institutes from Japan, North America, and Europe have joined to contribute to developing satellite and onboard instruments, data-processing software, and the scientific observation program. XRISM is the successor to the ASTRO-H (Hitomi) mission, which ended prematurely in 2016. Its primary science goal is to examine astrophysical problems with precise, high-resolution X-ray spectroscopy. XRISM promises to discover new horizons in X-ray astronomy. It carries a 6 × 6 pixelized X-ray microcalorimeter on the focal plane of an X-ray mirror assembly (Resolve) and a co-aligned X-ray CCD camera (Xtend) that covers the same energy band over a large field of view. XRISM utilizes the Hitomi heritage, but all designs were reviewed. The attitude and orbit control system was improved in hardware and software. The spacecraft was launched from the JAXA Tanegashima Space Center on 2023 September 6 (UTC). During the in-orbit commissioning phase, the onboard components were activated. Although the gate valve protecting the Resolve sensor with a thin beryllium X-ray entrance window was not yet opened, scientific observation started in 2024 February with the planned performance verification observation program. The nominal observation program commenced with the following guest observation program beginning in 2024 September.

    DOI: 10.1093/pasj/psaf023

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  37. XRISM spectroscopy on orbital modulation of Fe Lyα lines in Cygnus X-3 Reviewed International coauthorship Open Access

    Daiki Miura, Hiroya Yamaguchi, Ralf Ballhausen, Timothy Kallman, Teruaki Enoto, Shinya Yamada, Tomohiro Hakamata, Ryota Tomaru, Hirokazu Odaka, Natalie Hell, Hiroshi Nakajima, Shin Watanabe, Tasuku Hayashi, Shunji Kitamoto, Kazutaka Yamaoka, Jon M Miller, Keigo Okabe, Itsuki Maruzuka, Karri Koljonen, Mike McCollough

    Publications of the Astronomical Society of Japan   Vol. 77 ( Supplement_1 ) page: S86 - S95   2025.9

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Oxford University Press (OUP)  

    Abstract

    To understand physical processes such as mass transfer and binary evolution in X-ray binaries, the orbital parameters of the system are fundamental and crucial information. Cygnus X-3 is a high-mass X-ray binary composed of a compact object of unknown nature and a Wolf–Rayet star, which is of great interest in the context of wind-fed mass accretion and binary evolution. Here we present XRISM/Resolve high-resolution spectroscopy, focusing on the Fe Ly$\alpha$ lines when the source was in its hypersoft state. We perform an orbital phase-resolved spectral analysis of the lines to study the orbital modulation of the emission and absorption lines. It is found that the emission lines reflect the orbital motion of the compact object whose estimated velocity amplitude is $430^{+150}_{-140}$ km s$^{-1}$, while the absorption lines show a variation that can be interpreted as originating from the stellar wind. We discuss possible mass ranges for the binary components using the mass function with the estimated value of the velocity amplitude in this work, combined with the relation between the mass-loss rate and the orbital period derivative and the empirical mass and mass-loss rate relation for Galactic Wolf–Rayet stars. They are constrained to be (1.3–5.1) and (9.3–12) M$_\odot$, respectively, for the assumed inclination angle of $i =25^\circ$, and become more relaxed, (1.3–24) and (9.3–16) M$_\odot$, for $i = 35^\circ$. Thus, it remains unclear whether the system harbors a black hole or a neutron star.

    DOI: 10.1093/pasj/psaf057

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  38. Detected Abundances of Nuclei Relative to 26Fe for Elements 14Si through 44Ru with CALET on the International Space Station Reviewed International coauthorship Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Betti, P., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., de Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Mattiazzi, M., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Negro, M., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Astrophysical Journal   Vol. 988 ( 2 )   2025.8

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    DOI: 10.3847/1538-4357/ade3cc

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  39. Kinematic Evidence for Bipolar Ejecta Flows in the Galactic Supernova Remnant W49B Reviewed International coauthorship Open Access

    Audard, M., Awaki, H., Ballhausen, R., Bamba, A., Behar, E., Boissay-Malaquin, R., Brenneman, L., Brown, G.V., Corrales, L., Costantini, E., Cumbee, R., Trigo, M.D., Done, C., Dotani, T., Ebisawa, K., Eckart, M.E., Eckert, D., Eguchi, S., Enoto, T., Ezoe, Y., Foster, A., Fujimoto, R., Fujita, Y., Fukazawa, Y., Fukushima, K., Furuzawa, A., Gallo, L., Garc{\'i}a, J.A., Gu, L., Guainazzi, M., Hagino, K., Hamaguchi, K., Hatsukade, I., Hayashi, K., Hayashi, T., Hell, N., Hodges-Kluck, E., Hornschemeier, A., Ichinohe, Y., Ishi, D., Ishida, M., Ishikawa, K., Ishisaki, Y., Kaastra, J., Kallman, T., Kara, E., Katsuda, S., Kanemaru, Y., Kelley, R.L., Kilbourne, C.A., Kitamoto, S., Kobayashi, S., Kohmura, T., Kubota, A., Leutenegger, M.A., Loewenstein, M., Maeda, Y., Markevitch, M., Matsumoto, H., Matsushita, K., McCammon, D., McNamara, B., Mernier, F., Miller, E.D., Miller, J.M., Mitsuishi, I., Mizumoto, M., Mizuno, T., Mori, K., Mukai, K., Murakami, H., Mushotzky, R., Nakajima, H., Nakazawa, K., Ness, J.-U., Nobukawa, K., Nobukawa, M., Noda, H., Odaka, H., Ogawa, S., Ogorzalek, A., Okajima, T., Ota, N., Paltani, S., Petre, R., Plucinsky, P., Porter, F.S., Pottschmidt, K., Sano, H., Sato, K., Sato, T., Sawada, M., Seta, H., Shidatsu, M., Simionescu, A., Smith, R., Suzuki, H., Szymkowiak, A., Takahashi, H., Takeo, M., Tamagawa, T., Tamura, K., Tanaka, T., Tanimoto, A., Tashiro, M., Terada, Y., Terashima, Y., Tsuboi, Y., Tsujimoto, M., Tsunemi, H., Tsuru, T.G., T{\"u}mer, A., Uchida, H., Uchida, N., Uchida, Y., Uchiyama, H., Ueda, Y., Uno, S., Vink, J., Watanabe, S., Williams, B.J., Yamada, S., Yamada, S., Yamaguchi, H., Yamaoka, K., Yamasaki, N., Yamauchi, M., Yamauchi, S., Yaqoob, T., Yoneyama, T., Yoshida, T., Yukita, M., Zhuravleva, I., Amano, Y., Gall, A., Mitrani, S., Murakami, K., Rahin, R., Suzuki, N.

    Astrophysical Journal Letters   Vol. 988 ( 2 )   2025.8

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    DOI: 10.3847/2041-8213/ade138

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  40. Precision Spectral Measurements of Chromium and Titanium from 10 to 250  GeV/n and Sub-Iron to Iron Ratio with the Calorimetric Electron Telescope on the International Space Station Reviewed International coauthorship Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Betti, P., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., de Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Mattiazzi, M., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Negro, M., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Physical Review Letters   Vol. 135 ( 2 ) page: 021002 - 021002   2025.7

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    DOI: 10.1103/py17-74rk

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  41. Structured ionized winds shooting out from a quasar at relativistic speeds Reviewed International coauthorship Open Access

    Xu, Y., Tombesi, F., Sato, R., Reeves, J., Mizukawa, R., Miyamoto, A., Luminari, A., Gonzalez, A., d Fukumura, K. and C., o}, P., Braito, V., Zhuravleva, I., Yukita, M., Yoshida, T., Yoneyama, T., Yaqoob, T., Yamauchi, S., Yamauchi, M., Yamasaki, N., Yamaoka, K., Yamaguchi, H., Yamada, S., Yamada, S., Williams, B.J., Watanabe, S., Vink, J., Uno, S., Ueda, Y., Uchiyama, H., Uchida, Y., Uchida, N., Uchida, H., Tsuru, T.G., Tsunemi, H., Tsujimoto, M., Tsuboi, Y., Terashima, Y., Terada, Y., Tashiro, M., Tanimoto, A., Tanaka, T., Tamura, K., Tamagawa, T., Takeo, M., Takahashi, H., Szymkowiak, A., Suzuki, H., Smith, R., Simionescu, A., Shidatsu, M., Seta, H., Sawada, M., Sato, T., Sato, K., Pottschmidt, K., Porter, F.S., Plucinsky, P., Petre, R., Paltani, S., Ota, N., Okajima, T., Ogorzalek, A., Ogawa, S., Odaka, H., Noda, H., Nobukawa, M., Nobukawa, K., Ness, J.-U., Nakazawa, K., Nakajima, H., Mushotzky, R., Murakami, H., Mukai, K., Mori, K., Mizuno, T., Mizumoto, M., Mitsuishi, I., Miller, J.M., Miller, E.D., Mernier, F., McNamara, B., McCammon, D., Matsushita, K., Matsumoto, H., Markevitch, M., Maeda, Y., Loewenstein, M., Leutenegger, M., Kubota, A., Kohmura, T., Kobayashi, S., Kitamoto, S., Kilbourne, C., Kelley, R., Kanemaru, Y., Katsuda, S., Kara, E., Kallman, T., Kaastra, J., Ishisaki, Y., Ishikawa, K., Ishida, M., Ichinohe, Y., Hornschemeier, A., Hodges-Kluck, E., Hell, N., Hayashi, T., Hayashi, K., Hatsukade, I., Hamaguchi, K., Hagino, K., Guainazzi, M., Gu, L., Garc{\'i}a, J.A., Gallo, L., Furuzawa, A., Fukushima, K., Fukazawa, Y., Fujita, Y., Fujimoto, R., Foster, A., Ezoe, Y., Eguchi, S., Enoto, T., Eckert, D., Eckart, M., Ebisawa, K., Dotani, T., Done, C., Trigo, M.D., Cumbee, R., Costantini, E., Corrales, L., Brown, G.V., Brenneman, L., Boissay-Malaquin, R., Behar, E., Bamba, A., Ballhausen, R., Awaki, H., Audard, M.

    Nature   Vol. 641 ( 8065 ) page: 1132 - 1136   2025.5

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    DOI: 10.1038/s41586-025-08968-2

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  42. XRISM Forecast for the Coma Cluster: Stormy, with a Steep Power Spectrum Reviewed International coauthorship Open Access

    Audard, M., Awaki, H., Ballhausen, R., Bamba, A., Behar, E., Boissay-Malaquin, R., Brenneman, L., Brown, G.V., Corrales, L., Costantini, E., Cumbee, R., Trigo, M.D., Done, C., Dotani, T., Ebisawa, K., Eckart, M.E., Eckert, D., Eguchi, S., Enoto, T., Ezoe, Y., Foster, A., Fujimoto, R., Fujita, Y., Fukazawa, Y., Fukushima, K., Furuzawa, A., Gallo, L., Garc{\'i}a, J.A., Gu, L., Guainazzi, M., Hagino, K., Hamaguchi, K., Hatsukade, I., Hayashi, K., Hayashi, T., Hell, N., Hodges-Kluck, E., Hornschemeier, A., Ichinohe, Y., Ishi, D., Ishida, M., Ishikawa, K., Ishisaki, Y., Kaastra, J., Kallman, T., Kara, E., Katsuda, S., Kanemaru, Y., Kelley, R., Kilbourne, C., Kitamoto, S., Kobayashi, S., Kohmura, T., Kubota, A., Leutenegger, M., Loewenstein, M., Maeda, Y., Markevitch, M., Matsumoto, H., Matsushita, K., McCammon, D., McNamara, B., Mernier, F., Miller, E.D., Miller, J.M., Mitsuishi, I., Mizumoto, M., Mizuno, T., Mori, K., Mukai, K., Murakami, H., Mushotzky, R., Nakajima, H., Nakazawa, K., Ness, J.-U., Nobukawa, K., Nobukawa, M., Noda, H., Odaka, H., Ogawa, S., Ogorza?ek, A., Okajima, T., Ota, N., Paltani, S., Petre, R., Plucinsky, P., Porter, F.S., Pottschmidt, K., Sato, K., Sato, T., Sawada, M., Seta, H., Shidatsu, M., Simionescu, A., Smith, R., Suzuki, H., Szymkowiak, A., Takahashi, H., Takeo, M., Tamagawa, T., Tamura, K., Tanaka, T., Tanimoto, A., Tashiro, M., Terada, Y., Tsuboi, Y., Tsujimoto, M., Tsunemi, H., Tsuru, T., T{\"u}mer, A., Terashima, Y., Uchida, N., Uchida, Y., Uchiyama, H., Ueda, S., Ueda, Y., Uno, S., Uchida, H., Vink, J., Watanabe, S., Williams, B.J., Yamada, S., Yamada, S., Yamaguchi, H., Yamaoka, K., Yamasaki, N., Yamauchi, M., Yamauchi, S., Yaqoob, T., Yoneyama, T., Yoshida, T., Yukita, M., Zhuravleva, I., Fabian, A., Nelson, D., Okabe, N., Pillepich, A., Potter, C., Regamey, M., Sakai, K., Shishido, M., Truong, N., Wik, D.R., ZuHone, J.

    Astrophysical Journal Letters   Vol. 985 ( 1 )   2025.5

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    DOI: 10.3847/2041-8213/add2f6

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  43. The iron and nickel spectra measured with CALET on the international space station

    O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W.R. Binns, M. Bongi, P. Brogi, A. Bruno, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, K. Ebisawa, A. W. Ficklin, H. Fuke, S. Gonzi, T. G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. S. Krawczynski, J. F. Krizmanic, P. Maestro, P. S. Marrocchesi, M. Mattiazzi, A. M. Messineo, J. W. Mitchell, S. Miyake, A. A. Moiseev, M. Mori, N. Mori, H. M. Motz, K. Munakata, S. Nakahira, J. Nishimura, G. A. de Nolfo, S. Okuno, J. F. Ormes, S. Ozawa, L. Pacini, P. Papini, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, W. V. Zober

    International Journal of Modern Physics A   Vol. 40 ( 08 )   2025.3

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    Recent direct measurements of the energy spectra of the charged cosmic ray have revealed unexpected spectral features, most notably the onset of a progressive hardening at few hundreds of GeV/n not only of proton and He spectra but also observable for heavier nuclei. Thus, the study of the spectra behavior of heavy elements may shed light on understanding propagation and acceleration phenomena in our Galaxy. In particular, Fe and Ni provide favorable conditions for observations thanks to the low background contamination from spallation of higher mass elements they are affected by. The CALorimetric Electron Telescope, CALET, has been measuring high-energy cosmic rays on the International Space Station since October 2015. The instrument consists of two layers of segmented plastic scintillators, a 3 radiation length thick tungsten-scintillating fiber imaging calorimeter and a 27 radiation length thick PWO calorimeter. It identifies the charge of individual elements up to Ni and beyond and it measures the energy of cosmic-ray nuclei providing a direct measurement of their spectra. In this contribution, the iron and nickel spectra, resulted after 5 years of data acquisition, are presented in the energy range between 10 and 2000 GeV/n and between 8.8 and 240 GeV/n, respectively. The analysis procedure and the assessment of systematic errors are detailed, in addition to the ratio between the two fluxes. Both spectra show similar shape and energy dependence.

    DOI: 10.1142/S0217751X2443019X

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  44. XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029 Open Access

    Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Maria Diaz Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick S. Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Tommaso Bartalesi, Stefano Ettori, Roman Kosarzycki, Lorenzo Lovisari, Tom Rose, Arnab Sarkar, Ming Sun, Prathamesh Tamhane

    The Astrophysical Journal Letters   Vol. 982 ( 1 ) page: L5 - L5   2025.3

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    Abstract

    We present XRISM Resolve observations of the core of the hot, relaxed galaxy cluster Abell 2029 (A2029). We find that the line-of-sight bulk velocity of the intracluster medium (ICM) within the central 180 kpc is at rest with respect to the brightest cluster galaxy, with a 3σ upper limit of ∣v <sub>bulk</sub>∣ &lt; 100 km s<sup>−1</sup>. We robustly measure the field-integrated ICM velocity dispersion to be σ <sub> v </sub> = 169 ± 10 km s<sup>−1</sup>, obtaining similar results for both single-temperature and two-temperature plasma models to account for the cluster cool core. This result, if ascribed to isotropic turbulence, implies a subsonic ICM with Mach number and a nonthermal pressure fraction of 2.6 ± 0.3%. The turbulent velocity is similar to what was measured in the core of the Perseus cluster by Hitomi, but here in a more massive cluster with an ICM temperature of 7 keV, the limit on the nonthermal pressure fraction is even more stringent. Our result is consistent with expectations from simulations of relaxed clusters, but it is on the low end of the predicted distribution, indicating that A2029 is an exceptionally relaxed cluster with no significant impacts from either a recent minor merger or active galactic nucleus activity.

    DOI: 10.3847/2041-8213/ada7cd

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    Other Link: https://iopscience.iop.org/article/10.3847/2041-8213/ada7cd/pdf

  45. The bulk motion of gas in the core of the Centaurus galaxy cluster Reviewed Open Access

    Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Teruaki Enoto, Satoshi Eguchi, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick Scott Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, María Díaz Trigo, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi G. Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Marie Kondo, Norbert Werner, Tomáš Plšek, Ming Sun, Kokoro Hosogi, Anwesh Majumder

    Nature   Vol. 638 ( 8050 ) page: 365 - +   2025.2

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    DOI: 10.1038/s41586-024-08561-z

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  46. Overionized plasma in the supernova remnant Sagittarius A East anchored by XRISM observations Open Access

    Audard, M; Awaki, H; Ballhausen, R; Bamba, A; Behar, E; Boissay-Malaquin, R; Brenneman, L; Brown, GV; Corrales, L; Costantini, E; Cumbee, R; Diaz-Trigo, M; Done, C; Dotani, T; Ebisawa, K; Eckart, M; Eckert, D; Enoto, T; Eguchi, S; Ezoe, Y; Foster, A; Fujimoto, R; Fujita, Y; Fukazawa, Y; Fukushima, K; Furuzawa, A; Gallo, L; García, JA; Gu, LY; Guainazzi, M; Hagino, K; Hamaguchi, K; Hatsukade, I; Hayashi, K; Hayashi, T; Hell, N; Hodges-Kluck, E; Hornschemeier, A; Ichinohe, Y; Ishida, M; Ishikawa, K; Ishisaki, Y; Kaastra, J; Kallman, T; Kara, E; Katsuda, S; Kanemaru, Y; Kelley, R; Kilbourne, C; Kitamoto, S; Kobayashi, S; Kohmura, T; Kubota, A; Leutenegger, M; Loewenstein, M; Maeda, Y; Markevitch, M; Matsumoto, H; Matsushita, K; McCammon, D; McNamara, B; Mernier, F; Miller, ED; Miller, JM; Mitsuishi, I; Mizumoto, M; Mizuno, T; Mori, K; Mukai, K; Murakami, H; Mushotzky, R; Nakajima, H; Nakazawa, K; Ness, JU; Nobukawa, K; Nobukawa, M; Noda, H; Odaka, H; Ogawa, S; Ogorzalek, A; Okajima, T; Ota, N; Paltani, S; Petre, R; Plucinsky, P; Scott Porter, F; Pottschmidt, K; Sato, K; Sato, T; Sawada, M; Seta, H; Shidatsu, M; Simionescu, A; Smith, R; Suzuki, H; Szymkowiak, A; Takahashi, H; Takeo, M; Tamagawa, T; Tamura, K; Tanaka, T; Tanimoto, A; Tashiro, M; Terada, Y; Terashima, Y; Tsuboi, Y; Tsujimoto, M; Tsunemi, H; Tsuru, TG; Uchida, H; Uchida, N; Uchida, Y; Uchiyama, H; Ueda, Y; Uno, S; Vink, J; Watanabe, S; Williams, BJ; Yamada, S; Yamada, S; Yamaguchi, H; Yamaoka, K; Yamasaki, N; Yamauchi, M; Yamauchi, S; Yaqoob, T; Yoneyama, T; Yoshida, T; Yukita, M; Zhuravleva, I; Wang, QD; Amano, Y; Tanaka, K; Narita, T; Ohshiro, Y; Yoshimoto, A; Aoki, Y; Balakrishnan, M

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 77 ( 1 ) page: L1 - L8   2024.12

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    Sagittarius A East is a supernova remnant with a unique surrounding environment, as it is located in the immediate vicinity of the supermassive black hole at the Galactic center, Sagittarius A<sup>∗</sup>. The X-ray emission of the remnant is suspected to show features of overionized plasma, which would require peculiar evolutionary paths. We report on the first observation of Sagittarius A East with the X-Ray Imaging and Spectroscopy Mission (XRISM). Equipped with a combination of a high-resolution microcalorimeter spectrometer and a large field-of-view CCD imager, we for the first time resolved the Fe XXV K-shell lines into fine structure lines and measured the forbidden-to-resonance intensity ratio to be 1.39 ± 0.12, which strongly suggests the presence of overionized plasma. We obtained a reliable constraint on the ionization temperature just before the transition into the overionization state, of >4 keV. The recombination timescale was constrained to be <8 × 10<sup>11</sup> cm<sup>−3</sup> s. The small velocity dispersion of 109 ± 6 km s<sup>−1</sup> indicates a low Fe ion temperature <8 keV and a small expansion velocity <200 km s<sup>−1</sup>. The high initial ionization temperature and small recombination timescale suggest that either rapid cooling of the plasma via adiabatic expansion from dense circumstellar material or intense photoionization by Sagittarius A<sup>∗</sup> in the past may have triggered the overionization.

    DOI: 10.1093/pasj/psae111

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  47. The XRISM/Resolve View of the Fe K Region of Cyg X-3 Reviewed Open Access

    Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, María Díaz Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick S. Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Ryota Tomaru, Tasuku Hayashi, Tomohiro Hakamata, Daiki Miura, Karri Koljonen, Mike McCollough

    The Astrophysical Journal Letters   Vol. 977 ( 2 ) page: L34 - L34   2024.12

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    Abstract

    The X-ray binary system Cygnus X-3 (4U 2030+40, V1521 Cyg) is luminous but enigmatic owing to the high intervening absorption. High-resolution X-ray spectroscopy uniquely probes the dynamics of the photoionized gas in the system. In this Letter, we report on an observation of Cyg X-3 with the XRISM/Resolve spectrometer, which provides unprecedented spectral resolution and sensitivity in the 2–10 keV band. We detect multiple kinematic and ionization components in absorption and emission whose superposition leads to complex line profiles, including strong P Cygni profiles on resonance lines. The prominent Fe xxv Heα and Fe xxvi Lyα emission complexes are clearly resolved into their characteristic fine-structure transitions. Self-consistent photoionization modeling allows us to disentangle the absorption and emission components and measure the Doppler velocity of these components as a function of binary orbital phase. We find a significantly higher velocity amplitude for the emission lines than for the absorption lines. The absorption lines generally appear blueshifted by ∼−500–600 km s<sup>−1</sup>. We show that the wind decomposes naturally into a relatively smooth and large-scale component, perhaps associated with the background wind itself, plus a turbulent, denser structure located close to the compact object in its orbit.

    DOI: 10.3847/2041-8213/ad8ed0

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    Other Link: https://iopscience.iop.org/article/10.3847/2041-8213/ad8ed0/pdf

  48. Direct measurements of cosmic – Ray iron and nickel with CALET on the International Space Station Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., de Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Mattiazzi, M., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Advances in Space Research   Vol. 74 ( 9 ) page: 4368 - 4376   2024.11

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    DOI: 10.1016/j.asr.2024.03.052

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  49. The Calorimetric Electron Telescope (CALET) on the International Space Station: Results from the first eight years on orbit Open Access

    Akaike, Y., Adriani, O., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., de Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Negro, M., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Advances in Space Research   Vol. 74 ( 9 ) page: 4353 - 4367   2024.11

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    DOI: 10.1016/j.asr.2024.04.035

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  50. The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N 132D Open Access

    Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Maria Diaz-Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Dominique Eckert, Teruaki Enoto, Satoshi Eguchi, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D Miller, Jon M Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick Scott Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi G Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Manan Agarwal, Yuken Ohshiro

    Publications of the Astronomical Society of Japan   Vol. 76 ( 6 ) page: 1186 - 1201   2024.10

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    Abstract

    We present an initial analysis of the X-Ray Imaging and Spectroscopy Mission (XRISM) first-light observation of the supernova remnant (SNR) N 132D in the Large Magellanic Cloud. The Resolve microcalorimeter has obtained the first high-resolution spectrum in the 1.6–10 keV band, which contains K-shell emission lines of Si, S, Ar, Ca, and Fe. We find that the Si and S lines are relatively narrow, with a broadening represented by a Gaussian-like velocity dispersion of $\sigma _v \sim 450$ km s$^{-1}$. However, the Fe He$\alpha$ lines are substantially broadened with $\sigma _v \sim 1670$ km s$^{-1}$. This broadening can be explained by a combination of the thermal Doppler effect due to the high ion temperature and the kinematic Doppler effect due to the SNR expansion. Assuming that the Fe He$\alpha$ emission originates predominantly from the supernova ejecta, we estimate the reverse shock velocity at the time when the bulk of the Fe ejecta were shock heated to be $-1000 \lesssim V_{\rm rs}$ (km s$^{-1}$) $\lesssim 3300$ (in the observer frame). We also find that Fe Ly$\alpha$ emission is redshifted with a bulk velocity of $\sim 890$ km s$^{-1}$, substantially larger than the radial velocity of the local interstellar medium surrounding N 132D. These results demonstrate that high-resolution X-ray spectroscopy is capable of providing constraints on the evolutionary stage, geometry, and velocity distribution of SNRs.

    DOI: 10.1093/pasj/psae080

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  51. Boron flux in cosmic rays and its flux ratio to primary species measured with CALET on the International Space Station

    Maestro P., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    We present the measurement of the energy spectrum of the boron flux in cosmic rays based on the data collected by the CALorimetric Electron Telescope (CALET) during 7.25 years of operation on the International Space Station. The energy spectrum is measured from 8.4 GeV/n to 3.8 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. The observed boron flux shows a spectral hardening at the same transition energy E<inf>0</inf> ∼ 200 GeV/n of the carbon and oxygen spectra, though B flux has a different energy dependence with respect to C and O. Within the limitations of our data’s present statistical significance, the boron spectral index change is found to be slightly larger than that of carbon and oxygen, which are similar. A corresponding break in the energy dependence of the B/C and B/O flux ratios also supports the idea that the secondary cosmic rays exhibit a stronger hardening than primary ones. Moreover, interpreting our data with a Leaky Box model, we argue that the trend of the energy dependence of the B/C and B/O ratios in the TeV/n region could suggest a possible presence of a residual propagation path length, compatible with the hypothesis that a fraction of secondary B nuclei can be produced near the cosmic-ray source.

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  52. Event-by-Event Analysis for TeV Electron Candidates with CALET on the International Space Station

    Cannady N., Akaike Y., Torii S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The Calorimetric Electron Telescope (CALET) is a deep electromagnetic calorimeter designed for the measurement of cosmic-ray electrons on the International Space Station. Deployed on the Exposed Facility of the Japanese Experiment Module since August 2015, it observes cosmic-ray electrons with energies up to above 10 TeV and hadrons up to PeV total energies. Above a few TeV, the decrease in the electron flux and increased contamination by protons in the boosted decision tree (BDT) selection introduce challenges to determination of the flux at the highest energies and the search for signatures of nearby accelerators. To address the proton contamination, we apply a dedicated event-by-event analysis to evaluate the likelihood of each candidate event being a real electron or a contaminating proton. In this work, we detail the implementation of the likelihood analysis based on physically motivated shower parameters in the CALET calorimeter. Large simulated electron and proton datasets tailored to the parameters of the observed candidate events are generated and studied to produce a likelihood parameter for the improved rejection of protons. The results are tied to the BDT selection in the flight data analysis and summarized for the currently identified candidate events. Finally, we discuss an expansion of this work presently under development to use BDTs trained specifically for each candidate to provide an additional figure of merit.

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  53. Dark Matter Limits from the CALET Electron+Positron Spectrum with Individual Astrophysical Source Background

    Motz H., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring the energy spectrum of electron+positron cosmic rays up to 20 TeV. Annihilation or decay of dark matter (DM) could produce signatures in the positron and electron cosmic-ray spectra, thus the parameter space of DM candidate models can be probed by studying these messengers. The TeV-region extension of the spectrum provided by CALET is especially important for heavy DM search, since the signature’s location in energy is closely correlated with the DM mass. The magnet spectrometer AMS-02 on the other hand provides an exclusive positron-only spectrum below the TeV range. The combined analysis of both data-sets allows for DM search with a sophisticated modeling of the astrophysical background, comprising pulsars as the primary positron source and supernova remnant (SNR) sources providing the majority of the electron flux, in addition to a secondary component. As a refinement over a phenomenological power-law parametrization of the background, overlapping individual point source spectra are used as background for deriving limits on DM annihilation and decay from the CALET all-electron and the AMS-02 positron-only data. The used SNR and pulsar samples combine known nearby sources dominating the spectrum at high energies with randomly generated ones throughout the galaxy. By analyzing a large number of samples with also randomized emission spectra parameters, the expected variability of the background is taken into account, improving the reliability of the obtained limits on DM annihilation cross-section and lifetime.

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  54. Cosmic-Ray Modulation during Solar Cycles 24-25 Transition Observed with CALET on the International Space Station

    Miyake S., Munakata K., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Moiseev A.A., Mori M., Mori N., Motz H.M., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    We present the solar modulation of electrons and protons observed by the CALorimetric Electron Telescope onboard the International Space Station for about 7 years since October 2015, during the transition phase from the descending phase of the 24th solar cycle to the ascending phase of the 25th solar cycle. The observed variations of electron and proton count rates at an identical average rigidity of 3.8 GV show a clear charge-sign dependence of the solar modulation of galactic cosmic rays (GCRs), which is consistent with the prediction of a numerical drift model of the GCR transport in the heliosphere. It is also found that the ratio of 3.8 GV proton count rate to the neutron monitor count rate in the ascending phase of solar cycle 25 is clearly different from that in the descending phase of cycle 24. Correlations between the electron (proton) count rate and the heliospheric environmental parameters, such as the current sheet tilt angle, are a useful tool in further developing a numerical model of solar modulation.

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  55. CALET Search for electromagnetic counterparts of gravitational waves in O4

    Kawakubo Y., Cherry M.L., Sakamoto T., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The latest LIGO/Virgo/KAGRA observing run (O4) started on May 24 in 2023. Many ground and space instruments have participated in follow-up observation and search for electromagnetic counterparts of gravitational waves. Calorimetric Electron Telescope (CALET) on the International Space Station has also searched for electromagnetic counterparts since the observation started in October 2015. Although CALET is a payload for direct measurement of high-energy cosmic rays, CALET has the capability to observe high-energy gamma-rays above 1 GeV with the Calorimeter (CAL) and X-rays / gamma rays in the energy range from 7 keV to 20 MeV with the CALET Gamma-ray Burst Monitor (CGBM). We searched for electromagnetic counterparts of gravitational wave events in the last LIGO/Virgo observing run (O3). Although no candidate was found in CALET data in O3, CAL and CGBM estimated upper limits of gamma-ray / X-ray flux for the gravitational waves in O3. We have been searching for electromagnetic counterparts of gravitational waves in O4 with improved and automated analysis pipelines to deal with many events with high event rates. As of the end of June 2023, the LIGO/Virgo/KAGRA collaboration reported 169 events via the GCN/LVC NOTICE, and 15 of 169 events were reported to GCN Circulars as significant events. Although CGBM and CAL searched for signals associated with the significant events, no candidates were found around the event time of the significant events. We obtained CAL upper limits for eight significant events of which localization high probability region overlapped with the CAL field of view.

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  56. Feasibility study on an analysis of CR helium flux with the CALET detector based on an extended acceptance

    Mattiazzi M., Brogi P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    In this work, we present a feasibility study aiming at a measurement of the cosmic ray (CR) helium flux utilizing CALET data with a significantly enhanced statistical precision. It is based on a wider geometrical acceptance compared to the current CALET analysis while ensuring a correct identification of charged particles crossing the detector. The expected statistical enhancement for the all-acceptance configuration is nearly a factor of two compared to the previous analysis, over the entire energy range from tens of GeV to hundreds of TeV. Preliminary assessment of efficiencies and background sources has been carried out based on energy-dependent charge selections.

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  57. Statistical analysis into the drivers behind relativistic electron precipitation events observed by CALET on the International Space Station

    Ficklin A.W., Bruno A., Blum L., de Nolfo G.A., Guzik T.G., Kataoka R., Remya B., Vidal-Luengo S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Fuke H., Gonzi S., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The Calorimetric Electron Telescope (CALET), launched to the International Space Station in 2015, provides more than 7 years of continuous observation of the radiation environment at low earth orbit. Using this dataset, we present a method for the detection and categorization of MeV relativistic electron precipitation (REP) events. From this catalog we identify a subset of a few hundred REP events observed at times where CALET is in magnetic conjunction with the Van Allen probes. These conjugate measurements enable studies of associated plasma wave data from RBSPA/B and potential drivers for MeV electron precipitation. We show that roughly 10 percent of the observed REP events are associated with enhanced electromagnetic ion cyclotron wave activity, suggesting that waves can play a significant role in driving MeV electron precipitation.

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  58. Status of the operations of CALET for 7.5 years on the International Space Station

    Tamura T., Akaike Y., Kobayashi K., Adriani O., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

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    The CALorimetric Electron Telescope (CALET) has successfully been carrying out cosmic-ray observations on the International Space Station since October, 2015. CALET directly measures the cosmic-ray electron spectrum in the energy range of 1 GeV to 20 TeV with a 2 % energy resolution above 30 GeV. In addition, the instrument can measure the spectrum of gamma rays well into the TeV range, and the spectra of protons and nuclei up to a PeV. The scientific operations are implemented by taking into account orbital variations of geomagnetic rigidity cutoff. Scheduled command sequences are used to control the CALET observation modes on orbit. The high-energy (>10 GeV) trigger mode is always active for maintaining maximum exposure to high-energy electrons and other high-energy shower events. Also, around the ISS orbit, calibration data acquisition by, for example, recording pedestal and penetrating particle events, a low-energy electron trigger mode operating at high geomagnetic latitude, a low-energy gamma-ray trigger mode operating at low geomagnetic latitude, and an ultra-heavy trigger mode, are scheduled. As of June 30, 2023, the total observation time is 2818 days with a live time fraction of the total time around 86 %. Nearly 1.86 billion events are collected with the high-energy trigger.

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  59. SOlar Neutron and Gamma-ray Spectrometer (SONGS)

    Yamaoka K., Tajima H., Miyata K., Watabe T., Ito K., Miyazawa T., Kudoh T., Nakazawa K., Masuda S., Tani K., Arai M., Hatori S., Kume K., Mizushima S., Takahashi H., Watanabe K.

    Proceedings of Science   Vol. 444   2024.9

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    Particle acceleration mechanisms of protons and heavy ions in solar flares and coronal mass ejections (CMEs) are still unknown issues. Neutrons can be unique observation probes since they are hardly affected by solar and interplanetary magnetic field. However, little progress has not been made in previous neutron observations due to its insufficient sensitivity in ground-based observatories. To over come such situation, we have launched new space mission dedicated for solar neutron observations, so-called SOlar Neutron and Gamma-ray Spectrometer (SONGS). This detector consists of multi-layered 256 plastic scintillator bars and 12×12 GAGG(Ce) scintillator array readout by SiPMs to track cosmic-ray interactions in three dimensions. In this configuration, it is sensitive to both fast neutrons (30–120 MeV) and soft gamma-rays (0.1–3 MeV). In this paper, we report on scientific motivation, instrumental details, and development status of the SONGS mission.

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  60. Results of the Ultra-Heavy Cosmic-Ray Analysis with CALET on the International Space Station

    Zober W.V., Rauch B.F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    Proceedings of Science   Vol. 444   2024.9

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    The CALorimetric Electron Telescope (CALET), launched to the ISS in August 2015 and in continuous operation since, measures cosmic-ray (CR) electrons, nuclei, and gamma rays. CALET, with its 27 radiation length deep Total Absorption Calorimeter (TASC), measures particle energy, allowing for the determination of spectra and secondary to primary ratios of the more abundant CR nuclei through <inf>28</inf>Ni, while the main charge detector (CHD) can measure Ultra-Heavy (UH) CR nuclei through <inf>40</inf>Zr. Previous CALET UHGCR analyses used a special high duty cycle (∼90%) UH trigger that does not require passage through the TASC and used time- and position-dependent detector response corrections based on <inf>14</inf>Si and <inf>26</inf>Fe and an angle-dependent geomagnetic cutoff rigidity selection to show abundances of even nuclei in agreement with SuperTIGER and ACE-CRIS. The work shown here further improves upon those results by restricting UH events to those that pass through both the TASC and CHD. While this constraint does reduce the number of events to ∼1/6 of the original UH trigger analysis, the loss of statistics is compensated by improvements in event selection from an energy-binned charge determination and minimum deposited energy that substitutes for the previous minimum geomagnetic rigidity selection. The results shown here represent 7 years of observation for the abundances of elements from Z=10 to Z=40 relative to <inf>26</inf>Fe and are compared to previous measurements from ACE-CRIS, SuperTIGER, and HEAO-3.

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  61. Results from CALorimetric Electron Telescope (CALET) Observations of Gamma-rays on the International Space Station

    Mori M., Cannady N., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The CALorimetric Electron Telescope (CALET) cosmic ray detector on the International Space Station (ISS) has been in operation since its launch in 2015. The main instrument, the CALorimeter (CAL), is optimized to observe high-energy electrons up to TeV energies, but its three-storied, composite and thick detector enable us to discriminate gamma rays from overwhelming background of charged cosmic rays. Thus, it is monitoring the gamma ray sky from 1 GeV up to 10 TeV with a field of view of about 2 sr, but the exposure is somewhat non-uniform because of the limitation imposed by the inclination angle (51.6 degree) of the ISS orbit. In this paper we report results from gamma ray observations obtained during its mission for more than seven years with increased statistics compared with previous reports. They include properties of the Galactic diffuse gamma rays, spectra of bright Galactic point sources, and light curves of extragalactic active galactic nuclei, which show good consistencies with Fermi-LAT observations of which energy range overlaps with CALET.

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  62. Refinement of the High-Energy Gamma-ray Selection for CALET on the International Space Station

    Cannady N., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The Calorimetric Electron Telescope (CALET) is a deep electromagnetic calorimeter designed for the measurement of cosmic-ray electrons on the International Space Station. Deployed on the Exposed Facility of the Japanese Experiment Module since August 2015, it observes cosmic-ray electrons with energies up to above 10 TeV and hadrons up to PeV total energies. It is also sensitive to gamma rays in the energy range from 1 GeV to 1 TeV. At energies above 100 GeV, sensitivity is lost in the gamma-ray selection as previously defined. This is due in large part to the contamination of the charge measurement in the CHD (Charge Detector) and the IMC (Imaging Calorimeter) by backscattered particles from the electromagnetic shower in the TASC (Total Absorption Calorimeter). In this work, we implement a revision to the photon selection criteria using a significantly increased simulated dataset, increasing CALET’s exposure at these energies significantly. Furthermore, the allowable geometry for incident photons is expanded and the energy reconstruction revised to tighten the energy resolution for highly inclined tracks. We validate the distributions used for the selection through comparison with real data, evaluate the changes to the instrument response functions, and assess the implications for the flight data analysis of gamma rays with CALET.

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  63. Optimizing Selection Criteria for the CALET Ultra-Heavy Cosmic Ray Analysis

    Zober W.V., Rauch B.F., Ficklin A.W., Cannady N., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    Proceedings of Science   Vol. 444   2024.9

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    CALET, the Calorimetric Electron Telescope, launched to the International Space Station in August 2015 and in continuous operation since, has gathered over seven years of data so far. CALET is able to measure cosmic-ray (CR) electrons, nuclei, and gamma rays and with its 27 radiation length deep Total Absorption Calorimeter (TASC), measures particle energy, allowing for the determination of spectra and secondary to primary ratios of the more abundant CR nuclei through <inf>28</inf>Ni, while the main charge detector (CHD) can measure Ultra-Heavy (UH) CR nuclei through <inf>40</inf>Zr. CALET UHCR analyses use a special high duty cycle UH trigger with an expanded geometry that does not require passage through the TASC. To effectively analyze UHCR trigger events, a number of screens and corrections have been developed for the analysis. From time- and position-dependent detector response corrections based on <inf>14</inf>Si and <inf>26</inf>Fe, to an angle-dependent geomagnetic cutoff rigidity selections and minimum deposited energy screens, a number of methods have been explored to optimize UH statistics to varying effect. In this work, we aim to show how these event selection screens and corrections have been developed, how the rigidity screens shown previously by Rauch et al. [1] compare to the newer TASC methodology shown in Zober et al. (2023) [2], and how TASC selections may be used to influence analysis on the full UH-trigger dataset.

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  64. Observational Challenges on the ISS: A Case Study with CALET

    Cannady N., Kawakubo Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The International Space Station (ISS) provides an orbital platform for astrophysical missions with lower resource requirements than free-flying satellites. The many uses of the ISS, how7 keVever, can produce unique challenges to the accurate analysis of the data acquired by these instruments. In this work, we present effects observed by the Calorimetric Electron Telescope (CALET), an astroparticle physics mission installed on the Japanese Experiment Module Exposed Facility of the ISS. The CALET calorimeter is sensitive to cosmic-ray electrons and gamma rays from 1 GeV up to above 10 TeV, and to cosmic-ray hadrons up to PeV total energies. The CALET Gamma-ray Burst Monitor (CGBM) is sensitive to X-rays and low-energy gamma rays from 7 keV to 20 MeV. Furthermore, ultra-heavy galactic cosmic-ray (UHGCRs) abundances are measured by CALET using a much more open geometry than is possible for events which shower in the instrument. In this work, we discuss ISS-related issues that affect the observations by CALET. Here we detail the ways these effects are accounted for in the production of scientific results. Finally, the possible impact on future missions such as TIGERISS (Trans-Iron Galactic Element Recorder for the International Space Station; planned for deployment to the ISS in 2026) and mitigation strategies are discussed.

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  65. Observation of spectral structures in the flux of cosmic ray protons with CALET on the International Space Station

    Kobayashi K., Marrocchesi P.S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    A precise measurement of the cosmic-ray proton spectrum is carried out with the Calorimetric Electron Telescope (CALET) and a sharp softening of the energy spectrum above 10 TeV is observed. CALET, located on the International Space Station, has started data taking in October 2015 and has accumulated data for more than seven years without any serious troubles. CALET is pursuing the direct measurement of the main components of high energy cosmic rays up to ~1 PeV in order to understand the cosmic ray acceleration and propagation. Thanks to the thick calorimeter that corresponds to 30 radiation lengths and to ∼1.3 proton interaction lengths, the proton analysis presented in this paper spans a broad energy range from 50 GeV to 60 TeV. Proton energy resolution is 30-40%, and the residual background is less than 10% in the E < 10 TeV region. In the multi-TeV region, we observed a spectral softening with a spectral index change from -2.6 to -2.9 in addition to the spectral hardening we had previously confirmed with a high significance above a few hundred GeV. The transition to the softer regime is much sharper than the smooth onset of hardening observed at lower energy.

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  66. Measurement of iron cosmic-ray primaries below 10GeV/n by use of the geomagnetic effect with CALET

    Ichimura M., Kasahara K., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ioka K., Ishizaki W., Israel M.H., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

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    The CALET Calorimeter on the International Space Station(ISS) has previously measured the flux and spectrum of iron cosmic-ray nuclei above 10 GeV/n. In order to extend the measurement to the region below 10 GeV/n, we carry out an analysis to utilize the geomagnetic effect. Cutoff rigidities of cosmic-ray nuclei are calculated for all directions for each observation point in the ISS orbit. The integral spectrum of observed rigidities is then obtained by counting the number of iron nuclei in each bin of cutoff rigidity. The absolute flux and differential spectrum are then calculated by taking the detection efficiencies into account. Here we present the details of the analysis procedure and the iron spectrum below 10 GeV/n.

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  67. Iron and Nickel fluxes measured by CALET on the International Space Station

    Stolzi F., Checchia C., Bigongiari G., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The study of the spectral behavior of heavy cosmic-ray elements may shed light on the details of propagation and acceleration phenomena in our Galaxy. The CALorimetric Electron Telescope (CALET) is measuring the spectra of heavy nuclei up to the highest directly observed energies on the International Space Station. In this contribution, based on the data collected during 7 years of operation, the measurement of the energy dependence of iron and nickel fluxes is presented. With respect to our previous published measurements, the analysis has been extended to a data sample enriched with more than 2.5 (1.5) extra years for iron (nickel). The results of the new analysis are reported together with a detailed assessment of systematic uncertainties. In the energy range explored so far, both spectra show a similar shape and energy dependence, suggesting that iron and nickel may follow almost identical acceleration and propagation mechanisms.

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  68. Interpretation of the CALET Electron+Positron Spectrum by Astrophysical Sources

    Motz H., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring the energy spectrum of electron+positron cosmic rays up to 20 TeV. Supernova remnants (SNR) are the most likely astrophysical sources to provide the majority of the electron flux, out of which a few nearby young SNR like Vela are expected to dominate in the TeV-region with potentially detectable spectral signatures. Another expected contribution to the spectrum is from pulsars as a primary positron-electron pair source for explanation of the positron excess. Complementary to the CALET all-electron spectrum, the positron-only spectrum measured by the magnet spectrometer AMS-02 below the TeV range provides detailed information on this component. An interpretation of the CALET and AMS-02 data by overlapping spectra from individual pulsar and SNR point sources is presented, combining sources known from electromagnetic wave observations with further randomly generated ones spread throughout the Galaxy. Based on the study of a large number of samples with randomized source locations and emission spectra parameters, best fitting ranges and constraints for these parameters, as well as predictions for the spectrum beyond the so far measured energy range have been derived.

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  69. Highlights from the CALET observations for 7.5 years on the International Space Station

    Torii S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The CALorimetric Electron Telescope (CALET) space experiment is a high-energy astroparticle physics mission installed on the International Space Station (ISS). The primary goals of the CALET mission include studying the details of galactic cosmic-ray acceleration and propagation, and searching for possible nearby sources of high-energy electrons and dark matter signatures. The CALET experiment is measuring the flux of cosmic-ray electrons (including positrons) to 20 TeV, gamma-rays to 10 TeV and nuclei with Z=1 to 40 up to 1,000 TeV. The instrument consists of two layers of segmented plastic scintillators for the identification of cosmic-rays via a measurement of their charge (CHD), a 3 radiation length thick tungsten-scintillating fiber imaging calorimeter (IMC) and a 27 radiation length thick lead-tungstate calorimeter (TASC). The instrument was launched on August 19, 2015 to the ISS and installed on the Japanese Experiment Module-Exposed Facility (JEM-EF). Since the start of operations in mid-October, 2015, CALET has been in continuous observation mode over 7.5 years and mainly triggering on high energy (>10 GeV) cosmic-ray showers without any major interruption. The number of triggered events over 10 GeV is nearly 1.86 billion events as of June 30, 2023. Here, we present the highlights of the CALET latest results, including the electron + positron energy spectrum, the spectra of protons and other nuclei, gamma-ray observations, as well as the characterization of on-orbit performance. Some results on the electromagnetic counterpart search for LIGO/Virgo gravitational wave events and the observations of solar modulation and gamma-ray bursts are also included.

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  70. Helium flux and its ratio to proton flux in cosmic rays measured with CALET on the International Space Station

    Brogi P., Kobayashi K., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The CALorimetric Electron Telescope (CALET) is a space-based calorimetric instrument, designed to carry out precision measurements of high energy cosmic rays. Installed on the Japanese Experiment Module – Exposed Facility on the ISS, it is collecting data with excellent performance and no significant interruptions since October 2015. We present the results of a direct measurement of the energy spectrum of cosmic-ray helium, based on about 6.5 years of collected data. It shows significant deviations from a single power law with a progressive hardening around a few hundred GeV followed by a softening in the multi-TeV region. A measurement of the proton to helium flux ratio is also presented. Thanks to the recent update of the CALET proton flux with higher statistics, the p/He ratio is measured with high precision, extending the energy reach of previous measurements with magnetic spectrometers by more than one order of magnitude.

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  71. Flux ratios of primary elements measured by CALET on the International Space Station

    Checchia C., Stolzi F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The study of flux ratios of cosmic-ray primary elements is of particular interest not only to assess the relative abundance of each element, but also to gain a deeper understanding of their propagation in the galaxy. High energy cosmic ray data are the best candidate for this purpose as convection, nuclear decay, and energy degradation can be neglected during their propagation. CALET on the International Space Station has been measuring the flux of several primary elements from proton to nickel for 7 years to date. In this contribution, the flux ratios of heavy primary elements to lighter primaries will be shown, extending the energy range already investigated by previous measurements.

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  72. The cosmic-ray electron and positron spectrum measured with CALET on the International Space Station

    Akaike Y., Torii S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., de Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 444   2024.9

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    The CALorimetric Electron Telescope (CALET) has been collecting data on the International Space Station for more than seven years since October 2015. CALET is an all-calorimetric instrument with a total vertical thickness of 30 radiation lengths and fine imaging capability, optimized for the measurement of the electron and positron (all-electron) spectrum well into the TeV energy region. The observed event statistics have increased more than three times since its last publication about the all-electron spectrum to 4.8 TeV in 2018. Based on Monte Carlo simulations, the data analysis effectively rejects background protons, resulting in less than 10% contamination up to the TeV region. The expected systematic errors are investigated. The significance of the cutoff at the TeV region in the energy spectrum, which is expected as a result of radiation loss during propagation, has increased to over 6σ. By observing the detailed structure in the TeV region of the energy spectrum, we will investigate on the presence of possible nearby cosmic-ray sources. In this paper, we will present the updated all-electron spectrum, and briefly discuss its interpretations.

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  73. XRISM Spectroscopy of the Fe Kα Emission Line in the Seyfert Active Galactic Nucleus NGC 4151 Reveals the Disk, Broad-line Region, and Torus Reviewed Open Access

    Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Maria Diaz Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Teruaki Enoto, Satoshi Eguchi, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick S. Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Xin Xiang, Takeo Minezaki, Margaret Buhariwalla, Dimitra Gerolymatou, Scott Hagen

    The Astrophysical Journal Letters   Vol. 973 ( 1 ) page: L25 - L25   2024.9

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    Abstract

    We present an analysis of the first two XRISM/Resolve spectra of the well-known Seyfert-1.5 active galactic nucleus (AGN) in NGC 4151, obtained in 2023 December. Our work focuses on the nature of the narrow Fe K<sub> α </sub> emission line at 6.4 keV, the strongest and most common X-ray line observed in AGN. The total line is found to consist of three components. Even the narrowest component of the line is resolved with evident Fe K<sub> α,1</sub> (6.404 keV) and K<sub> α,2</sub> (6.391 keV) contributions in a 2:1 flux ratio, fully consistent with neutral gas with negligible bulk velocity. Subject to the limitations of our models, the narrowest and intermediate-width components are consistent with emission from optically thin gas, suggesting that they arise in a disk atmosphere and/or wind. Modeling the three line components in terms of Keplerian broadening, they are readily associated with (1) the inner wall of the “torus,” (2) the innermost optical “broad-line region” (or “X-ray BLR”), and (3) a region with a radius of r ≃ 100 GM/c <sup>2</sup> that may signal a warp in the accretion disk. Viable alternative explanations of the broadest component include a fast-wind component and/or scattering; however, we find evidence of variability in the narrow Fe K<sub> α </sub> line complex on timescales consistent with small radii. The best-fit models are statistically superior to simple Voigt functions, but when fit with Voigt profiles the time-averaged lines are consistent with a projected velocity broadening of FWHM . Overall, the resolution and sensitivity of XRISM show that the narrow Fe K line in AGN is an effective probe of all key parts of the accretion flow, as it is currently understood. We discuss the implications of these findings for our understanding of AGN accretion, future studies with XRISM, and X-ray-based black hole mass measurements.

    DOI: 10.3847/2041-8213/ad7397

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    Other Link: https://iopscience.iop.org/article/10.3847/2041-8213/ad7397/pdf

  74. Latest results on cosmic rays light elements with the CALorimetric Electron Telescope (CALET) on the International Space Station

    Stolzi F., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., De Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 447   2024.4

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    The CALorimetric Electron Telescope (CALET) is an experiment installed on the International Space Station designed to carry out precision measurements of high energy cosmic-rays (CR) with the aim of investigating their origin, the mechanisms of acceleration and galactic propagation, and the presence of possible nearby astrophysical CR sources. The instrument combines a scintillator hodoscope for charge identification, thin imaging scintillating fiber calorimeter for particle tracking and complementary charge measurement, and total absorption PWO calorimeter for energy measurement. CALET is able to obtain precise measurements of the fluxes of CR electrons and rays up to TeV region, the energy spectra of CR nuclei from proton to nickel from few tens of GeV to hundreds of TeV and secondary-to-primary ratios of elements up to Z = 40. Here we present the highlights of CALET observation of light elements carried out during the first seven years of operation, including a direct measurement of the electron+positron spectrum from 11 GeV to 4.8 TeV and proton spectrum from 50 GeV to 60 TeV. Results on the electromagnetic counterpart search for LIGO/Virgo gravitational wave events and gamma-ray bursts are also summarized.

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  75. Resuts of the Heavy Cosmic-Ray Analysis with CALET on the International Space Station

    Checchia C., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Cannady N., Castellini G., Cherry M.L., Collazuol G., De Nolfo G.A., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 447   2024.4

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    The study of the spectral behavior of charged cosmic-ray elements is of particular interest to gain a deeper understanding of propagation and acceleration phenomena in our Galaxy. The Calorimetric Electron Telescope (CALET), launched to the International Space Station in 2015, provides more than 7 years of continuous observation of high energy cosmic rays up to ~1 PeV. CALET can measure cosmic-ray charge up to Z = 40 and, with its 27 radiation lengths deep Total Absorption Calorimeter, it measures particle energy, allowing for the determination of spectra up to nickel. In this contribution we present a direct measurement of several charged nuclei spectra from boron to nickel, including the boron to carbon and the nickel to iron ratios. Also, the ultra heavy nuclei analysis results are reported.

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  76. Development and operation status of X-Ray Imaging and Spectroscopy Mission (XRISM) Open Access

    Makoto S. Tashiro, Shin Watanabe, Hironori Maejima, Kenichi Toda, Kyoko Matsushita, Hiroya Yamaguchi, Richard L. Kelley, Lillian S. Reichenthal, Leslie S. Hartz, Robert Petre, Brian J. Williams, Matteo Guainazzi, Andrea Santovincenzo, Elisa Costantini, Yoh Takei, Yoshitaka Ishisaki, Ryuichi Fujimoto, Joy Henegar-Leon, Gary Sneiderman, Hiroshi Tomida, Koji Mori, Hiroshi Nakajima, Yukikatsu Terada, Matt Holland, Micheal Loewenstein, Tomothey Kallman, Jelle Kaastra, Eric Miller, Makoto Sawada, Chris Done, Teruaki Enoto, Aya Bamba, Paul Plucinsky, Yoshitaka Ueda, Erin Kara, Irina Zhuravleva, Yutaka Fujita, Jose Antonio Quero, Yoshitaka Arai, Marc Audard, Hisamitsu Awaki, Chris Baluta, Nobutaka Bando, Ehud Behar, Thomas Bialas, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Meng Chiao, Lia Corrales, Renata Cumbee, Cor de Vries, Jan-Willem den Herder, Maria Diaz-Trigo, Michael DiPirro, Tadayasu Dotani, Jacobo Ebrero Carrero, Ken Ebisawa, Megan Eckart, Dominique Eckart, Satoshi Eguchi, Yuichiro Ezoe, Carlo Ferrgno, Adam Foster, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Nathalie Gorter, Martin Grim, Liyi Gu, Koichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Takafumi Horiuchi, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Chisato Ikuta, Ryo Iizuka, Daiki Ishi, Manabu Ishida, Naoki Ishihama, Kumi Ishikawa, Kosei Ishimura, Tess Jaffe, Satoru Katsuda, Yoshiaki Kanemaru, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Shogo Kobayashi, Akihide Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Muzi Li, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McLaughlin, Brian McNamara, Josegh Miko, Jon Miller, Kenji Minesugi, Shinji Mitani, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Kazuhiro Nakazawa, Chikara Natsukari, Jan-Uwe Ness, Kenichiro Nigo, Mari Nishiyama, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Shoji Ogawa, Takashi Okajima, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, F. Scott Porter, Katja Pottschmidt, Takahiro Sasaki, Kosuke Sato, Rie Sato, Toshiki Sato, Yoichi Sato, Hiromi Seta, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Russel Shipman, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall Smith, Young Soong, Hiromasa Suzuki, Andy Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yoichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Ucghida, Yuusuke Uchida, Hideki Uchiyama, Shinichiro Uno, Erik Van der Meer, Jacco Vink, Michael Wittheof, Rob Wolf, Satoshi Yamada, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yamagase, Tahir Yaqoob, Susumu Yasuda, Tomokage Yoneyama, Tessei Yoshida

    Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray   Vol. 13093   page: 52 - 52   2024

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:SPIE  

    DOI: 10.1117/12.3019325

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  77. High-z gamma-ray bursts unraveling the dark ages and extreme space-time mission - HiZ-GUNDAM Open Access

    Yonetoku, D; Doi, A; Mihara, T; Matsuhara, H; Sakamoto, T; Tsumura, K; Ioka, K; Arimoto, M; Enoto, T; Fujimoto, K; Goto, H; Gunji, S; Hiraga, J; Ikunaga, S; Kawai, N; Kondo, R; Kurosawa, S; Li, J; Maeda, Y; Mitsuishi, I; Murakami, T; Nagataka, I; Nakagawa, Y; Ogino, N; Owari, T; Sato, R; Sato, M; Sato, T; Sawano, T; Serino, M; Shen, HC; Sugita, S; Takahashi, S; Tamagawa, T; Tamura, K; Tanaka, T; Tanimori, T; Tashiro, MS; Togashi, T; Tomida, H; Watanabe, K; Yamaoka, K; Yamauchi, M; Yatsu, Y; Yoshida, A; Akitaya, H; Fukui, A; Fukui, H; Ita, Y; Kawabata, K; Matsuura, S; Miyasaka, A; Motohara, K; Narita, N; Noda, H; Okita, H; Sano, K; Shinozaki, K; Tajima, S; Urata, Y; Wada, T; Yanagisawa, K; Yoshida, M; Bando, N; Jikuya, I; Minesugi, K; Miyazaki, Y; Kono, Y; Takase, N; Nakatsubo, S; Kaga, T; Asano, K; Inayoshi, K; Inoue, S; Ito, H; Izumiura, H; Kawanaka, N; Kinugawa, T; Kisaka, S; Kiuchi, K; Kyutoku, K; Matsumoto, J; Mizuta, A; Murase, K; Nagakura, H; Nagataki, S; Nakada, Y; Nakamura, T; Niino, Y; Suwa, Y; Takahashi, K; Tanaka, T; Toma, K; Totani, T; Yamazaki, R; Yokoyama, J; Harikane, Y; Tanaka, M; Kimura, S; Kimura, M

    SPACE TELESCOPES AND INSTRUMENTATION 2024: ULTRAVIOLET TO GAMMA RAY, PT 1   Vol. 13093   2024

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    HiZ-GUNDAM is a future satellite mission whose mission concept was approved by ISAS/JAXA, and it is one of the future satellite candidates of JAXA's competitive medium-class mission. HiZ-GUNDAM will lead time-domain astronomy in 2030s, and its key sciences are (1) exploration of the early universe with high-redshift gamma-ray bursts, and (2) contribution to the multi-messenger astronomy. Two mission payloads are aboard HiZ-GUNDAM to realize these two scientific issues. The wide field X-ray monitors which consist of Lobster Eye optics array and focal imaging sensor, monitor ~0.5 steradian field of view in 0.5-4 keV energy range. The near infrared telescope with an aperture size of 30 cm in diameter performs simultaneous 5-band photometric observation in 0.5-2.5 µm wavelength with Koester's prism for X-ray transients discovered by Wide Field X-ray Monitor. In this paper, we introduce the mission overview of HiZ-GUNDAM while the information contained herein may change in future studies.

    DOI: 10.1117/12.3018571

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  78. Status of Xtend telescope onboard X-Ray Imaging and Spectroscopy Mission (XRISM) Open Access

    Mori, K; Tomida, H; Nakajima, H; Okajima, T; Noda, H; Uchida, H; Suzuki, H; Kobayashi, SB; Yoneyama, T; Hagino, K; Nobukawa, K; Tanaka, T; Murakami, H; Uchiyama, H; Nobukawa, M; Matsumoto, H; Tsuru, T; Yamauchi, M; Hatsukade, I; Odaka, H; Kohmura, T; Yamaoka, K; Ishida, M; Maeda, Y; Hayashi, T; Tamura, K; Boissay-Malaquin, R; Sato, T; Yoshida, T; Kanemaru, Y; Hiraga, J; Dotani, T; Ozaki, M; Tsunemi, H; Inoue, S; Azuma, R; Asahina, Y; Nakamura, S; Kamei, T; Fukuda, M; Asakura, K; Yoshimoto, M; Ode, Y; Hakamata, T; Aoyagi, M; Shima, K; Aoki, Y; Ito, Y; Aoki, D; Fujisawa, K; Shimizu, Y; Higuchi, M; Miyazaki, K; Kusunoki, K; Otsuka, Y; Yokosu, H; Yonemaru, W; Ichikawa, K; Nakano, H; Takemoto, R; Matsushima, T; Hayashida, K

    SPACE TELESCOPES AND INSTRUMENTATION 2024: ULTRAVIOLET TO GAMMA RAY, PT 1   Vol. 13093   2024

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    Xtend is one of the two telescopes onboard the X-ray imaging and spectroscopy mission (XRISM), which was launched on September 7th, 2023. Xtend comprises the Soft X-ray Imager (SXI), an X-ray CCD camera, and the X-ray Mirror Assembly (XMA), a thin-foil-nested conically approximated Wolter-I optics. A large field of view of 38<sup>′</sup> × 38<sup>′</sup> over the energy range from 0.4 to 13 keV is realized by the combination of the SXI and XMA with a focal length of 5.6 m. The SXI employs four P-channel, back-illuminated type CCDs with a thick depletion layer of 200 µm. The four CCD chips are arranged in a 2×2 grid and cooled down to −110 <sup>◦</sup>C with a single-stage Stirling cooler. Before the launch of XRISM, we conducted a month-long spacecraft thermal vacuum test. The performance verification of the SXI was successfully carried out in a course of multiple thermal cycles of the spacecraft. About a month after the launch of XRISM, the SXI was carefully activated and the soundness of its functionality was checked by a step-by-step process. Commissioning observations followed the initial operation. We here present pre- and post-launch results verifying the Xtend performance. All the in-orbit performances are consistent with those measured on ground and satisfy the mission requirement. Extensive calibration studies are ongoing.

    DOI: 10.1117/12.3019804

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  79. orbit performance of the Xtend-XMA onboard XRISM

    Tamura, K; Hayashi, T; Boissay-Malaquin, R; Okajima, T; Sato, T; Eckart, ME; Leutenegger, MA; Yaqoob, T; Mori, K; Ishida, M; Maeda, Y; Tomida, H; Nakajima, H; Noda, H; Uchida, H; Suzuki, H; Kobayashi, SB; Yoneyama, T; Hagino, K; Nobukawa, KK; Tanaka, T; Murakami, H; Uchiyama, H; Nobukawa, M; Yoshida, T; Matsumoto, H; Tsuru, TG; Yamauchi, M; Hatsukade, I; Odaka, H; Kohmura, T; Yamaoka, K; Kanemaru, Y; Hiraga, JS; Dotani, T; Ozaki, M; Tsunemi, H; Miyazaki, K; Kusunoki, K; Otsuka, Y; Yokosu, H; Yonematsu, W; Ichikawa, K; Nakano, H; Takemoto, R; Matsushima, T; Asahina, Y; Fukuda, M; Yoshimoto, M; Shima, K; Aoyagi, M; Aoki, Y; Ito, Y; Aoki, D; Fujisawa, K; Shimizu, Y; Higuchi, M; Simionescu, A; Miller, E; Brenneman, L; Hayashida, K

    SPACE TELESCOPES AND INSTRUMENTATION 2024: ULTRAVIOLET TO GAMMA RAY, PT 1   Vol. 13093   2024

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    XRISM (X-ray Imaging and Spectroscopy Mission) is an X-ray astronomy satellite developed in collaboration with JAXA, NASA and ESA. It successfully launched on Sept. 7, 2023. Two complementary X-ray telescopes, Resolve and Xtend are on-board XRISM. Resolve uses the pixelized X-ray micro calorimeter developed by NASA/GSFC and has very high energy resolution of 5 eV. On the other hand, Xtend uses an X-ray CCD camera as its focal plane detector which has high spatial resolution and a wide field of view. We evaluated the performance of the X-ray Mirror Assembly (XMA) for Xtend using data observed during the commissioning and PV phases of XRISM. To verify the imaging performance, the Point Spread Functions (PSF) generated from the observations of NGC 4151 and PDS 456 were compared with the ground-calibration results. The results show that the imaging performance of Xtend-XMA is not significantly different from that of the ground calibration, and that it meet the requirement. The effective area was verified by comparing the results of simultaneous observations of 3C 273 by XRISM and four X-ray astronomy satellites (Chandra, XMM-Newton, NuSTAR, and Swift). The results of the fitting of the X-ray spectrum of Xtend show no significant difference from the results of other satellites, suggesting the effective area used for fitting is correct. The on-axis position on the detector was estimated from the intensity of the Abell 2029 observations at four off-axis angles. The on-axis is about 40 arcsec away from the aim point, and the decrease in effective area at the aim point is less than 1%. Stray light observations of the Crab Nebula at 60 arcmin off-axis were obtained at two different satellite roll angles. The stray light intensity obtained at each roll angle was significantly different, verifying the dependence of the stray light on the roll angle.

    DOI: 10.1117/12.3020109

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  80. Initial operations of the Soft X-ray Imager onboard XRISM Open Access

    Suzuki, H; Yoneyama, T; Kobayashi, SB; Noda, H; Uchida, H; Nobukawa, KK; Hagino, K; Mori, K; Tomida, H; Nakajima, H; Tanaka, T; Murakami, H; Uchiyama, H; Nobukawa, M; Kanemaru, Y; Otsuka, Y; Yokosu, H; Yonemaru, W; Nakano, H; Ichikawa, K; Takemoto, R; Matsushima, T; Yoshimoto, M; Aoyagi, M; Shima, K; Aoki, Y; Ito, Y; Fukuda, K; Kiyama, H; Aoki, D; Fujisawa, K; Shimizu, Y; Higuchi, M; Fukuda, M; Sakamoto, N; Azuma, R; Inoue, S; Kohmura, T; Yamauchi, M; Hatsukade, I; Matsumoto, H; Odaka, H; Mizuno, T; Yoshida, T; Maeda, Y; Ishida, M; Tsuru, TG; Yamaoka, K; Okajima, T; Hayashi, T; Hiraga, JS; Ozaki, M; Dotani, T; Tsunemi, H; Hayashida, K

    SPACE TELESCOPES AND INSTRUMENTATION 2024: ULTRAVIOLET TO GAMMA RAY, PT 1   Vol. 13093   2024

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    XRISM (X-Ray Imaging and Spectroscopy Mission) is an astronomical satellite with the capability of high-resolution spectroscopy with the X-ray microcalorimeter, Resolve, and wide field-of-view imaging with the CCD camera, Xtend. The Xtend consists of the mirror assembly (XMA: X-ray Mirror Assembly) and detector (SXI: Soft X-ray Imager). The components of SXI include CCDs, analog and digital electronics, and a mechanical cooler. After the successful launch on September 6th, 2023 (UT) and subsequent critical operations, the mission instruments were turned on and set up. The CCDs have been kept at the designed operating temperature of −110<sup>◦</sup>C after the electronics and cooling system were successfully set up. During the initial operation phase, which continued for more than a month after the critical operations, we verified the observation procedure, stability of the cooling system, all the observation options with different imaging areas and/or timing resolutions, and operations for protection against South Atlantic Anomaly. We optimized the operation procedure and observation parameters including the cooler settings, imaging areas for the specific modes with higher timing resolutions, and event selection algorithm. We summarize our policy and procedure of the initial operations for SXI. We also report on a couple of issues we faced during the initial operations and lessons learned from them.

    DOI: 10.1117/12.3018827

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  81. Direct Measurement of the Spectral Structure of Cosmic-Ray Electrons+Positrons in the TeV Region with CALET on the International Space Station Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Buckley, J.H., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., De Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Physical Review Letters   Vol. 131 ( 19 ) page: 191001   2023.11

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    DOI: 10.1103/PhysRevLett.131.191001

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  82. The cosmic-ray electron and positron spectrum measured with CALET on the International Space Station

    Yosui Akaike, Oscar Adriani, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0071

  83. Feasibility study on an analysis of CR helium flux with the CALET detector based on an extended acceptance

    Marco Mattiazzi, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0082

  84. Results of the Ultra-Heavy Cosmic-Ray Analysis with CALET on the International Space Station

    Wolfgang V Zober, Brian Flint Rauch, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0088

  85. Results from CALorimetric Electron Telescope (CALET) Observations of Gamma-rays on the International Space Station

    Masaki Mori, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0708

  86. Optimization of the proton background rejection in the measurement of the electron flux at high energies with CALET on the International Space Station

    Sandro Gonzi, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0090

  87. Dark Matter Limits from the CALET Electron+Positron Spectrum with Individual Astrophysical Source Background

    Holger Motz, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.1385

  88. Interpretation of the CALET Electron+Positron Spectrum by Astrophysical Sources

    Holger Motz, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0067

  89. Observation of spectral structures in the flux of cosmic ray protons with CALET on the International Space Station

    Kazuyoshi Kobayashi, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0092

  90. CALET Search for electromagnetic counterparts of gravitational waves in O4

    Yuta Kawakubo, Michael L. Cherry, Takanori Sakamoto, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.1517

  91. Flux ratios of primary elements measured by CALET on the International Space Station

    Caterina Checchia, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0093

  92. Iron and Nickel fluxes measured by CALET on the International Space Station

    Francesco Stolzi, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.8

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    DOI: 10.22323/1.444.0061

  93. Boron flux in cosmic rays and its flux ratio to primary species measured with CALET on the International Space Station

    Paolo Maestro, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0058

  94. Event-by-Event Analysis for TeV Electron Candidates with CALET on the International Space Station

    Nicholas W Cannady, Yosui Akaike, Shoji Torii, Oscar Adriani, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0062

  95. Status of the operations of CALET for 7.5 years on the International Space Station

    Tadahisa Tamura, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0094

  96. Statistical analysis into the drivers behind relativistic electron precipitation events observed by CALET on the International Space Station

    Anthony Ficklin, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0176

  97. Refinement of the High-Energy Gamma-ray Selection for CALET on the International Space Station

    Nicholas W Cannady, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0657

  98. Observational Challenges on the ISS: A Case Study with CALET

    Nicholas W Cannady, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     page: 063 - 063   2023.7

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    DOI: 10.22323/1.444.0063

  99. Measurement of iron cosmic-ray primaries below 10 GeV/n by use of the geomagnetic effect with CALET

    Masakatsu Ichimura, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Paolo Brogi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0057

  100. Helium flux and its ratio to proton flux in cosmic rays measured with CALET on the International Space Station

    Paolo Brogi, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, Gabriele Bigongiari, Walter Robert Binns, Massimo Bongi, Alessandro Bruno, Nicholas Wade Cannady, Guide Castellini, Caterina Checchia, Walter Robert Cherry, Gianmaria Collazuol, Georgia A. de Nolfo, Ken Ebisawa, Anthony W. Ficklin, Hideyuki Fuke, Sandro Gonzi, T. Gregory Guzik, Thomas Hams, Kinya Hibino, Masakatsu Ichimura, Kunihito Ioka, Wataru Ishizaki, Martin H. Israel, Katsumasa Kasahara, Jun Kataoka, Ryuho Kataoka, Yusaku Katayose, Chihiro Kato, Norita Kawanaka, Yuta Kawakubo, Kenko Kobayashi, Kazunori Kohri, Henric S. Krawczynski, John F. Krizmanic, Paolo Maestro, Pier Simone Marrocchesi, Alberto Maria Messineo, Jason W. Mitchell, Shoko Miyake, Alexander Moiseev, Masaki Mori, Nicola Mori, Holger Martin Motz, Kazuoki Munakata, Satoshi Nakahira, Jun Nishimura, Shoji Okuno, Jonathan Ormes, Shunsuke OZAWA, Lorenzo Pacini, Paolo Pacini, Brian Flint Rauch, Ricciarini Ricciarini, Kazuhiro Sakai, Takanori Sakamoto, Makoto Sasaki, Yuki Shimizu, Atsushi Shiomi, Piero Spillantini, Francesco Stolzi, Satoshi Sugita, Arta Sulaj, Masato Takita, Tadahisa Tamura, Toshio Terasawa, Shoji Torii, Yoshiki Tsunesada, Yukio Uchihori, Elena Vannuccini, John P. Wefel, Kazutaka Yamaoka, Shohei Yanagita, Atsumasa Yoshida, Kenji Yoshida, Wolfgang V Zober

    Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)     2023.7

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    DOI: 10.22323/1.444.0054

  101. Charge-Sign Dependent Cosmic-Ray Modulation Observed with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Buckley, J.H., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., De Nolfo, G.A., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Physical Review Letters   Vol. 130 ( 21 ) page: 211001   2023.5

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    DOI: 10.1103/PhysRevLett.130.211001

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  102. Simulation study of pulse height difference between pixel patterns of X-ray CCDs onboard the XRISM satellite Open Access

    Aoki Y., Nobukawa K.K., Ito Y., Nobukawa , Kanemaru , Miyazaki K., Kusunoki K., Mori K., Yoneyama T., Tamba T., Tomida H., Nakajima H., Matsumoto H., Noda H., Hayashida K., Tsuru T.G., Uchida H., Tanaka T., Suzuki H., Yoshida T., Murakami H., Yamauchi M., Hatsukade I., Hagino K., Kohmura T., Kobayashi S.B., Hiraga J.S., Uchiyama H., Yamaoka K., Ozaki M., Dotani T., Tsunemi H.

    Proceedings of Science   Vol. 420   2023.5

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    We have developed a soft X-ray telescope system Xtend onboard Japan's new X-ray astronomical satellite XRISM. Xtend employs X-ray CCDs, which have basically the same design as those used in the previous X-ray astronomical satellite Hitomi. Monochromatic X-ray line spectra of the CCDs onboard Hitomi showed offsets of centroids between different pixel patterns or different good grades; the spectral centroids of charge-sharing events are higher than those of single-pixel events. The spectral offset, which we call “Goffset”, can cause large uncertainties in X-ray energy determination accuracy. In this paper, confirming the CCDs onboard XRISM also have Goffset, we performed a simulation study that takes into account the two factors; charge sharing and readout noise. Goffset of the flight model CCD is successfully reproduced by the simulation with a certain readout noise. We investigate how charge sharing and readout noise cause Goffset based on the simulation results.

    DOI: 10.22323/1.420.0036

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  103. Direct Measurement of the Cosmic-Ray Helium Spectrum from 40 GeV to 250 TeV with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W. R., Bongi M., Brogi P., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., de Nolfo G. A., Ebisawa K., Ficklin A. W., Fuke H., Gonzi S., Guzik T. G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H. S., Krizmanic J. F., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori M., Mori N., Motz H. M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Pacini L., Papini P., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W. V

    PHYSICAL REVIEW LETTERS   Vol. 130 ( 17 ) page: 171002   2023.4

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    We present the results of a direct measurement of the cosmic-ray helium spectrum with the CALET instrument in operation on the International Space Station since 2015. The observation period covered by this analysis spans from October 13, 2015, to April 30, 2022 (2392 days). The very wide dynamic range of CALET allowed for the collection of helium data over a large energy interval, from ∼40 GeV to ∼250 TeV, for the first time with a single instrument in low Earth orbit. The measured spectrum shows evidence of a deviation of the flux from a single power law by more than 8σ with a progressive spectral hardening from a few hundred GeV to a few tens of TeV. This result is consistent with the data reported by space instruments including PAMELA, AMS-02, and DAMPE and balloon instruments including CREAM. At higher energy we report the onset of a softening of the helium spectrum around 30 TeV (total kinetic energy). Though affected by large uncertainties in the highest energy bins, the observation of a flux reduction turns out to be consistent with the most recent results of DAMPE. A double broken power law is found to fit simultaneously both spectral features: the hardening (at lower energy) and the softening (at higher energy). A measurement of the proton to helium flux ratio in the energy range from 60 GeV/n to about 60 TeV/n is also presented, using the CALET proton flux recently updated with higher statistics.

    DOI: 10.1103/PhysRevLett.130.171002

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  104. Simultaneous radio and optical polarimetry of GRB 191221B afterglow Reviewed Open Access

    Urata, Y., Toma, K., Covino, S., Wiersema, K., Huang, K., Shimoda, J., Kuwata, A., Nagao, S., Asada, K., Nagai, H., Takahashi, S., Chung, C.-E., Petitpas, G., Yamaoka, K., Izzo, L., Fynbo, J., de Ugarte, Postigo, A., Arabsalmani, M., Tashiro, M.

    Nature Astronomy   Vol. 7 ( 1 ) page: 80 - +   2023.1

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    DOI: 10.1038/s41550-022-01832-7

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    Other Link: https://www.nature.com/articles/s41550-022-01832-7

  105. Cosmic-Ray Boron Flux Measured from 8.4 GeV/n to 3.8 TeV/n with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W. R., Bongi M., Brogi P., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., de Nolfo G. A., Ebisawa K., Ficklin A. W., Fuke H., Gonzi S., Guzik T. G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israe M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H. S., Krizmanic J. F., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori M., Mori N., Motz H. M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Pacini L., Papini P., Rauch B. F., Ricciarini B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W. V

    PHYSICAL REVIEW LETTERS   Vol. 129 ( 25 ) page: 251103   2022.12

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    We present the measurement of the energy dependence of the boron flux in cosmic rays and its ratio to the carbon flux in an energy interval from 8.4 GeV/n to 3.8 TeV/n based on the data collected by the Calorimetric Electron Telescope (CALET) during ∼6.4 yr of operation on the International Space Station. An update of the energy spectrum of carbon is also presented with an increase in statistics over our previous measurement. The observed boron flux shows a spectral hardening at the same transition energy E0∼200 GeV/n of the C spectrum, though B and C fluxes have different energy dependences. The spectral index of the B spectrum is found to be γ=-3.047±0.024 in the interval 25<E<200 GeV/n. The B spectrum hardens by ΔγB=0.25±0.12, while the best fit value for the spectral variation of C is ΔγC=0.19±0.03. The B/C flux ratio is compatible with a hardening of 0.09±0.05, though a single power-law energy dependence cannot be ruled out given the current statistical uncertainties. A break in the B/C ratio energy dependence would support the recent AMS-02 observations that secondary cosmic rays exhibit a stronger hardening than primary ones. We also perform a fit to the B/C ratio with a leaky-box model of the cosmic-ray propagation in the Galaxy in order to probe a possible residual value λ0 of the mean escape path length λ at high energy. We find that our B/C data are compatible with a nonzero value of λ0, which can be interpreted as the column density of matter that cosmic rays cross within the acceleration region.

    DOI: 10.1103/PhysRevLett.129.251103

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  106. Observation of Spectral Structures in the Flux of Cosmic-Ray Protons from 50 GeV to 60 TeV with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Buckley, J.H., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., De Nolfo, G.A., Okuno, S., Ormes, J.F., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Physical Review Letters   Vol. 129 ( 10 ) page: 101102   2022.9

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    DOI: 10.1103/PhysRevLett.129.101102

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  107. CALET Search for Electromagnetic Counterparts of Gravitational Waves during the LIGO/Virgo O3 Run Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W. R., Bongi M., Brogi P., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Ebisawa K., Ficklin A. W., Fuke H., Gonzi S., Guzik T. G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H. S., Krizmanic J. F., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori M., Mori N., Motz H. M., Munakata K., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W. V.

    ASTROPHYSICAL JOURNAL   Vol. 933 ( 1 )   2022.7

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    The CALorimetric Electron Telescope (CALET) on the International Space Station consists of a high-energy cosmic-ray CALorimeter (CAL) and a lower-energy CALET Gamma-ray Burst Monitor (CGBM). CAL is sensitive to electrons up to 20 TeV, cosmic-ray nuclei from Z = 1 through Z ∼40, and gamma rays over the range 1 GeV-10 TeV. CGBM observes gamma rays from 7 keV to 20 MeV. The combined CAL-CGBM instrument has conducted a search for gamma-ray bursts (GRBs) since 2015 October. We report here on the results of a search for X-ray/gamma-ray counterparts to gravitational-wave events reported during the LIGO/Virgo observing run O3. No events have been detected that pass all acceptance criteria. We describe the components, performance, and triggering algorithms of the CGBM - the two Hard X-ray Monitors consisting of LaBr3(Ce) scintillators sensitive to 7 keV-1 MeV gamma rays and a Soft Gamma-ray Monitor BGO scintillator sensitive to 40 keV-20 MeV - and the high-energy CAL consisting of a charge detection module, imaging calorimeter, and the fully active total absorption calorimeter. The analysis procedure is described and upper limits to the time-averaged fluxes are presented.

    DOI: 10.3847/1538-4357/ac6f53

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  108. CALET on the International Space Station: a precise measurement of the iron spectrum Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 398   2022.5

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    The Calorimetric Electron Telescope (CALET) was launched on the International Space Station in 2015 and since then has collected a large sample of cosmic-ray charged particles over a wide energy. Thanks to a couple of layers of segmented plastic scintillators placed on top of the detector, the instrument is able to identify the charge of individual elements from proton to iron (and above). The imaging tungsten scintillating fiber calorimeter provides accurate particle tracking and the lead tungstate homogeneous calorimeter can measured the energy with a wide dynamic range. One of the CALET scientific objectives is to measure the energy spectra of cosmic rays to shed light on their acceleration and propagation in the Galaxy. By the observation in first five years, a precise measurement of the iron spectrum is now available in the range of kinetic energy per nucleon from 10 GeV/n to 2 TeV/n. The CALET's result with a description of the analysis and details on systematic uncertainties will be illustrated. Also, a comparison with previous experiments' results is given.

    DOI: 10.22323/1.398.0086

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  109. The Second Catalog of Interplanetary Network Localizations of Konus Short-duration Gamma-Ray Bursts Open Access

    Svinkin, D.S., Hurley, K., Ridnaia, A.V., Lysenko, A.L., Frederiks, D.D., Golenetskii, S.V., Tsvetkova, A.E., Ulanov, M.V., Kokomov, A., Cline, T.L., Mitrofanov, I., Golovin, D., Kozyrev, A., Litvak, M., Sanin, A., Goldstein, A., Briggs, M.S., Wilson-Hodge, C., Burns, E., Von Kienlin, A., Zhang, X.-L., Rau, A., Savchenko, V., Bozzo, E., Ferrigno, C., Barthelmy, S., Cummings, J., Krimm, H., Palmer, D.M., Tohuvavohu, A., Yamaoka, K., Ohno, M., Fukazawa, Y., Hanabata, Y., Takahashi, T., Tashiro, M., Terada, Y., Murakami, T., Makishima, K., Boynton, W., Fellows, C.W., Harshman, K.P., Enos, H., Starr, R., Goldsten, J., Gold, R., Ursi, A., Tavani, M., Bulgarelli, A., Casentini, C., Del Monte, E., Evangelista, Y., Galli, M., Longo, F., Marisaldi, M., Parmiggiani, N., Pittori, C., Romani, M., Verrecchia, F., Smith, D.M., Hajdas, W., Xiao, S., Cai, C., Yi, Q.B., Zhang, Y.Q., Xiong, S.L., Li, X.B., Huang, Y., Li, C.K., Zhang, S.N., Song, L.M., Liu, C.Z., Li, X.Q., Peng, W.X., Martinez-Castellanos, I.

    Astrophysical Journal Supplement Series   Vol. 259 ( 2 )   2022.4

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    DOI: 10.3847/1538-4365/ac4607

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  110. Direct Measurement of the Nickel Spectrum in Cosmic Rays in the Energy Range from 8.8 GeV/ n to 240 GeV/ n with CALET on the International Space Station Open Access

    Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Berti, E., Bigongiari, G., Binns, W.R., Bongi, M., Brogi, P., Bruno, A., Buckley, J.H., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., Ebisawa, K., Ficklin, A.W., Fuke, H., Gonzi, S., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kobayashi, K., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Nakahira, S., Nishimura, J., De Nolfo, G.A., Okuno, S., Ormes, J.F., Ospina, N., Ozawa, S., Pacini, L., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Spillantini, P., Stolzi, F., Sugita, S., Sulaj, A., Takita, M., Tamura, T., Terasawa, T., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K., Zober, W.V.

    Physical Review Letters   Vol. 128 ( 13 ) page: 131103   2022.4

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    DOI: 10.1103/PhysRevLett.128.131103

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  111. The analysis strategy for the measurement of the electron flux with CALET on the International Space Station Open Access

    Berti E., Gonzi S., Pacini L., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET), operating aboard the International Space Station since October 2015, is an experiment dedicated to high-energy astroparticle physics. The primary scientific goal of the experiment is the measurement of the electron+positron flux up to the multi-TeV region, which can provide unique information on the presence of nearby astrophysical sources and possible signals from dark matter. Other important goals are the ones relative to the flux of nuclear species from proton to iron up to tens of TeV/nucleon and to gamma-ray astronomy up to a few TeV. In order to accomplish these tasks, the CALET instrument was carefully designed exploiting a calorimeter solution composed by three detectors: CHarge Detector (CHD), IMaging Calorimeter (IMC) and Total AbSorption Calorimeter (TASC). This geometry allows for an excellent electromagnetic shower energy resolution (2%), a very high proton rejection factor (10<sup>5</sup>) and a relatively large geometric factor (0.1 m<sup>2</sup>sr). In this contribution, we present the analysis strategy employed for the measurement of the electron+positron flux, which is divided in two main steps. The first step consists of a group of selections to obtain a sample of well reconstructed candidates, removing particles outside the detector acceptance and particles with a charge Z>1, while keeping a high selection efficiency for electrons. The second step consists of a final rejection to remove the residual proton background: this is the most crucial point of the analysis since in cosmic rays protons are more abundant than electrons by a factor 100-1000. Proton rejection is performed using two different methodologies. We will demonstrate that, at low energies, it is enough to use a simple single cut that makes use of the reconstructed longitudinal and lateral profile, whereas, at high energies, it is necessary to use a more powerful cut that combines all detector information by the use of a multivariate analysis technique. Finally, we will show that this rejection algorithm leads to very stable performances at all energies, strongly reducing the impact of the associated uncertainty, which is the main source of systematic uncertainty in the high energy region.

    DOI: 10.22323/1.395.0065

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  112. Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station Open Access

    Maestro P., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Link J., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    We present the measurements of the energy spectra of carbon and oxygen nuclei in cosmic rays based on 4 years of observation with the Calorimetric Electron Telescope (CALET) on the International Space Station. The energy spectra are measured from 10 GeV/n to 2.2 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. Data analysis, including the detailed assessment of systematic uncertainties, and results are reported. The observed carbon and oxygen fluxes show a spectral hardening around 200 GeV/n established with a significance > 3σ. They have the same energy dependence and a constant C/O flux ratio above 25 GeV/n. These measurements will contribute to a better understanding of the origin of the spectral hardening.

    DOI: 10.22323/1.395.0093

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  113. Extended measurement of the proton spectrum with CALET on the International Space Station Open Access

    Kobayashi K., Marrocchesi P.S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The Calorimetric Electron Telescope (CALET) is pursuing the direct measurement of the main components of high energy cosmic rays up to ∼ 1 PeV in order to understand the cosmic ray acceleration and propagation. The detector consisting of a charge detector, an imaging calorimeter, and a total absorption calorimeter, is located on the International Space Station. The thickness of the calorimeter corresponds to 30 radiation lengths and to ∼ 1.3 proton interaction lengths. We have taken data for more than five years so far: data taking has started in October 2015 and continues stably without any serious troubles. We present the latest result of proton spectrum analysis in the energy region from 30 GeV to 60 TeV with a fiducial geometrical factor of ∼ 510 cm<sup>2</sup> sr and proton energy resolution is 30-40%. The residual background is less than 10% in the E < 10 TeV region. Compared to our previous result published in Physical Review Letters in 2019, more than two years of additional data have been analyzed. Spectral hardening around 500 GeV is confirmed with higher statistics. We report our preliminary observation of a proton spectral softening around 10 TeV.

    DOI: 10.22323/1.395.0098

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  114. Gamma-ray burst observation &amp; gravitational wave event follow-up with CALET on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) has been observing high-energy cosmic rays and gamma-rays on the International Space Station since October 2015. The CALET gamma-ray burst monitor (CGBM), mounted on CALET to observe prompt emissions of gamma-ray bursts (GRBs) in the hard X-ray and soft gamma-ray band, has been monitoring all-sky with ∼ 60 % duty cycle without any problems since October 2015. As of end May 2021, CGBM has detected 254 GRBs, including 31 short GRBs, thanks to the onboard trigger system. The Calorimeter (CAL), the primary instrument of CALET, has also collected gamma-ray data in the energy range from 1 GeV to 10 TeV while maintaining both instruments in good condition. We continue searching for high-energy gamma-rays from GRBs detected by CGBM, and have found two possible gamma-rays from GRBs. As described above, CALET can detect prompt emissions and high energy gammaray emission of GRBs. Therefore, we also have actively participated in the follow-up campaign for electromagnetic counterparts of the gravitational wave events observed by LIGO/Virgo since the operation start of the CALET. Although we have found no candidates of electromagnetic counterparts of the gravitational wave events, we have derived upper limits of the high-energy gamma-ray flux for 26 events in the LIGO/Virgo third observation run.

    DOI: 10.22323/1.395.0957

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  115. Investigating the Vela SNR’s Emission of Electron Cosmic Rays with CALET at the International Space Station Open Access

    Motz H., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring the energy spectrum of electron+positron cosmic rays up to 20 TeV. Cosmic-ray electrons of TeV region energy are limited by energy loss to a propagation range of about 1 kpc, therefore the expected sources are a few nearby supernova remnants (SNR), with the Vela SNR dominating the spectrum [1]. The latest spectrum measured by CALET [2] in combination with the positron-only flux published by AMS-02 [3] is fitted with a comprehensive model including nearby pulsars as the source of the positron excess. This model is extended to the TeV region by addition of the flux from the Vela SNR as calculated with DRAGON, with the integrated energy emitted in electron cosmic rays by the SNR as a variable scale factor. Exploring various scenarios for the time and energy dependence of the cosmic-ray release from Vela, under varied propagation conditions, best-fitting interpretations of the spectrum and upper limits on the emission of cosmic-ray electrons by Vela have been derived.

    DOI: 10.22323/1.395.0100

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  116. Low-energy gamma-ray observations above 1 GeV with CALET on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) was launched in August 2015 and installed on the International Space Station (ISS) Japanese Experiment Module Exposed Facility. Alongside the primary science targets of GeV-TeV energy cosmic-ray electrons and cosmic-ray hadrons up to PeV energies, CALET is sensitive to gamma rays from 1 GeV up to 10 TeV, limited by statistics. Access to energies below 10 GeV is enabled by a dedicated low-energy gamma (LE-γ) trigger which is active only at low geomagnetic latitudes. In this work we review the analysis of gamma-ray events collected with this trigger including the mitigation of a secondary photon background from cosmic-ray interactions with ISS structures in the CALET field-of-view, the observation of persistent galactic and extragalactic sources, and the detection of emission from the quiescent Sun.

    DOI: 10.22323/1.395.0604

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  117. Measurement of the cosmic-ray secondary-to-primary ratios with CALET on the International Space Station Open Access

    Akaike Y., Maestro P., Adriani O., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope, CALET, has been measuring high-energy cosmic rays on the International Space Station since October 2015. One of the scientific objectives of the CALET mission is the precise measurements of the energy spectra of individual cosmic-ray nuclei and the energy dependence of secondary-to-primary abundance ratio to reveal the detail of the cosmic-ray acceleration and propagation in the Galaxy. The instrument, consisting of two layers of segmented plastic scintillators, a 3 radiation length thick tungsten-scintillating fiber imaging calorimeter, and a 27 radiation length thick PWO calorimeter, has capabilities to identify individual nuclei elements up to Z = 40 with excellent charge resolution and cover the wide energy range from 10 GeV to a PeV scale. Long-term observation with CALET for over five years of operation allows to investigate the TeV region of the secondary components. In this paper, the details about the analysis of boron spectrum and boron-to-carbon ratio and their preliminary results will be presented.

    DOI: 10.22323/1.395.0112

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  118. Measurement of the energy spectrum of cosmic-ray helium with CALET on the International Space Station Open Access

    Brogi P., Kobayashi K., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) is a space instrument designed to carry out precision measurements of high energy cosmic-rays. It was installed onboard the International Space Station in August 2015 and since mid-October 2015 it is collecting data with excellent performance and no significant interruptions. The instrument consists of two layers of segmented plastic scintillators to identify the charge of individual elements from proton to iron, followed by a thick (30 X0 and ∼1.3 λI) calorimeter. It comprises a finely segmented imaging calorimeter (3 X0), providing accurate particle tracking and complementary charge measurement, and a total absorption (27 X0) homogeneous calorimeter. In addition to its primary science goal of identifying nearby sources of high-energy electrons and possible signatures of dark matter in the electron spectrum, CALET is carrying out measurements of the energy spectra, relative abundances and secondary-to-primary ratios of individual elements from proton to iron and above, in order to shed light on the mechanism of acceleration and propagation of cosmic rays in the Galaxy. Preliminary measurements of the energy spectrum of cosmic-ray helium, based on the first five years of collected data, will be presented and details of the analysis are given. The observations performed by CALET in the energy interval from a few GeV/n to the multi-TeV region show that the helium differential spectrum does not follow a simple power-law.

    DOI: 10.22323/1.395.0101

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  119. Measurement of the iron spectrum with CALET on the International Space Station Open Access

    Stolzi F., Checchia C., Akaike Y., Adriani O., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    The Calorimetric Electron Telescope (CALET), in operation on the International Space Station since 2015, has collected a large sample of cosmic-ray charged particles and gamma-rays over a wide energy interval. The instrument consists of two layers of segmented plastic scintillators to identify the charge of individual elements from proton to iron (and above), a thin imaging tungsten scintillating fiber calorimeter providing accurate particle tracking, and a lead-tungstate homogeneous calorimeter to measure energy. One of the scientific objectives of CALET is the direct measurement of the energy spectra of cosmic nuclei conveying important information on their acceleration and propagation in the Galaxy. Based on the first five years of CALET observation, CALET has measured the iron spectrum in the range of kinetic energy per nucleon from 10 GeV/n to 2.0 TeV/n. We present the CALET iron results, describe the analysis of the data and the detailed assessment of systematic uncertainties, and compare the CALET results with the findings of previous experiments.

    DOI: 10.22323/1.395.0109

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  120. Precise Measurement of the Cosmic-Ray Electron and Positron Spectrum with CALET on the International Space Station Open Access

    Torii S., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    Primary objectives of the CALET (CALorimetric Electron Telescope) mission are to search for possible nearby cosmic-ray sources and dark matter signatures with the precise measurement of the electron and positron (all-electron) spectrum. The instrument, consisting of a charge detector, an imaging calorimeter and a total absorption calorimeter, is optimized to measure the all-electron spectrum well into the TeV region with a thick calorimeter of 30 radiation length with fine shower-imaging capability. Due to the excellent energy resolution (a few % above 10 GeV) and the outstanding e/p separation (∼ 10<sup>5</sup>), CALET achieves optimal performance for a detailed search for structures in the energy spectrum. CALET has been accumulating scientific data for more than five years without any major interruption, and the statistics of observed electron events has increased more than double since the latest publication in 2018. In this paper we will present precise measurements of the all-electron spectrum up to several TeV, as obtained with the high statistics data, and we will briefly discuss about its interpretation.

    DOI: 10.22323/1.395.0105

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  121. Relativistic Electron Precipitation Detections with CALET on the International Space Station Open Access

    Bruno A., Blum L., de Nolfo G.A., Ficklin A.W., Gregory Guzik T., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) is a high-energy astroparticle physics experiment installed on the International Space Station, and taking data since October 2015. While designed for studying the origin and the propagation of galactic cosmic rays, CALET is also able to provide a continuous monitoring of space-weather phenomena affecting the near-Earth environment, including solar energetic particle and relativistic electron precipitation (REP) events. In this work we present preliminary results of the REP observations made over a ∼4.5 year acquisition time (October 2015 - May 2020), investigating their correlations with the interplanetary and geomagnetic conditions. We also took advantage of a multi-spacecraft study using the twin Van Allen Probe measurements to complement CALET detections in low-Earth orbit, enabling a more complete picture of the global precipitation rates and drivers.

    DOI: 10.22323/1.395.1295

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  122. Solar Modulation During the Descending Phase of Solar Cycle 24 Observed with CALET on the International Space Station Open Access

    Miyake S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) installed on the International Space Station has multiple event trigger modes for measuring cosmic-ray (CR) particles and gamma rays, and the observations of the low-energy CRs have been successfully performed by a Low-Energy Electron (LEE) shower trigger mode that is active only at high geomagnetic latitude. Here we have analyzed the low-energy electrons and protons to investigate the solar modulation during the descending phase of the solar cycle 24. We have confirmed that the flux of the low-energy electrons measured by CALET during the solar minimum has reached its maximum, which is comparable to or exceeding the maximum flux observed with PAMELA in the previous solar minimum period. We have also found count rates of electrons and protons at the same average rigidity showing a clear charge sign dependence as expected from the drift model of the solar modulation.

    DOI: 10.22323/1.395.1270

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  123. Solar Neutron and Gamma-ray Spectroscopy Mission: SONGS Open Access

    Kazutaka Yamaoka, Hiroyasu Tajima, Daiki Nobashi, Masaki Usami, Kikuko Miyata, Takaya Inamori, Ji Hyun Park, Kazuya Ito, Koji Matsushita, Toyoki Watabe, Kazuhiro Nakazawa, Satoshi Masuda, Hiromitsu Takahashi, Kyoko Watanabe

    Proceedings of Science   Vol. 395   2022.3

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    Fast neutrons generated by the interaction between ions and the solar atmosphere are important observation problems to clarify the ion acceleration mechanism in the Sun, but so far neutrons have been detected from only 12 X-class solar flares in the highland on the ground due to the influence of atmospheric absorption. As for observations in space, SEDA-AP at the International Space Station continued to operate until 2018 and succeeded in neutron detection from 52 solar flares, but there are currently no dedicated space missions. In order to overcome this situation, we have been designing and developing 3U CubeSat and novel neutron/gamma-ray sensors since 2018 with the aim of performing satellite observations from outer space. The sensor consists of the multi-layered plastic scintillator bars readout with Si PM, which is a semiconductor photo-sensor, and detects fast neutrons from the tracks of ejected protons by elastic scattering. Furthermore, by placing GAGG scintillator arrays at the bottom, it is designed to be sensitive to gamma-rays based on the principle of the Compton camera. In this presentation, we will report on the scientific motivation and the development status of CubeSat and neutron/gamma-ray sensors.

    DOI: 10.22323/1.395.1316

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  124. Ultra-Heavy Cosmic Ray Analysis with CALET on the International Space Station: Established and Developing Procedures Open Access

    Ficklin A.W., Cannady N., Rauch B.F., Zober W., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET) has collected over 60 months of uninterrupted data on the flux and spectrum of the Ultra-Heavy (UH) cosmic rays from Z=30 to 40. Using the latest data provided from CALET’s UH trigger, we present a newly developed UH analysis complementary to the ongoing analysis presented at this conference by Zober et al. This work introduces a new Ultra-Heavy Analysis (UHA) dataset produced from CALET production data allowing for more streamlined analysis. We detail temporal and spatial correction algorithms using both the <inf>26</inf>Fe and <inf>14</inf>Si peaks to improve charge resolution in the Z >= 30 region. Additionally, this work presents a new method for removing the contributions from non-relativistic/lower-Z nuclei using trajectory tracing to compute effective cutoff rigidities in place of the previously used vertical Stoermer approximation. We show that replacing the approximated cutoffs with numerically calculated effective cutoff rigidities, calculated using the IGRF13 and T05 (Tsyganenko 05) geomagnetic field models, leads to fewer events being removed from the dataset while maintaining improved charge resolution for Z > 26. Furthermore, we introduce Tarle function peak fitting to perform charge corrections needed as a result of any quenching effects. We show the most recent CALET UH results incorporating these improvements in the analysis.

    DOI: 10.22323/1.395.0069

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  125. Progress on Ultra-Heavy Cosmic-Ray Analysis with CALET on the International Space Station Open Access

    Zober W.V., Rauch B.F., Ficklin A.W., Cannady N., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    Proceedings of Science   Vol. 395   2022.3

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    The Calorimetric Electron Telescope (CALET), launched to the International Space Station in August 2015 and continuously operating since, measures cosmic-ray (CR) electrons, nuclei and gamma-rays. CALET utilizes its main calorimeter charge detector to measure CR nuclei from <inf>1</inf>H to <inf>40</inf>Zr. In order to maximize the acceptance of the rare ultra-heavy (UH) CR above <inf>30</inf>Zn, a special high duty cycle (∼90%) UH trigger is used that does not require passage through the 27 radiation length deep Total Absorption Calorimeter (TASC). This provides a 6× increase in geometry factor allowing CALET to collect in 5 years a UHCR dataset with statistics comparable to those from the first flight of the balloon-borne SuperTIGER instrument but without the need for atmospheric corrections. Previous CALET UHCR analyses using time and position corrections based on <inf>26</inf>Fe and a geomagnetic vertical cutoff rigidity selection have shown abundances of even nuclei in agreement with SuperTIGER. To further improve resolution and maximize statistics, a trajectory dependent geomagnetic rigidity selection has been employed here with further work being done to implement a Cash-Karp Runge-Kutta ray tracing method for an improved determination of effective cutoff rigidities. Additional work has also been done to analyze events from the smaller dataset of events that pass through the TASC, which provides energy information and a better charge assignment that will provide higher resolution UH measurements, albeit with lower statistics.

    DOI: 10.22323/1.395.0124

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  126. Investigating the Vela SNR's Emission of Electron Cosmic Rays with CALET at the International Space Station

    H. Motz, O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W.R. Binns, M. Bongi, P. Brogi, A. Bruno, J.H. Buckley, N. Cannady, G. Castellini, C. Checchia, M.L. Cherry, G. Collazuol, K. Ebisawa, A.W. Ficklin, H. Fuke, S. Gonzi, T.G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M.H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. Krawczynski, J.F. Krizmanic, J. Link, P. Maestro, P.S. Marrocchesi, A.M. Messineo, J.W. Mitchell, S. Miyake, A.A. Moiseev, M. Mori, N. Mori, K. Munakata, S. Nakahira, J. Nishimura, G.A. de Nolfo, S. Okuno, J.F. Ormes, N. Ospina, S. Ozawa, L. Pacini, P. Papini, B.F. Rauch, S.B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J.P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, W.V. Zober

    Proceedings of Science, 37th International Cosmic Ray Conference   Vol. Volume 395 ( 100 )   2022.3

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    DOI: 10.22323/1.395.0100

  127. New Results from the first 5 years of CALET observations on the International Space Station

    Marrocchesi P.S., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israe M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., De Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 395   2022.3

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    The CALorimetric Electron Telescope (CALET), developed and operated by Japan in collaboration with Italy and the United States, is a high-energy astroparticle physics experiment installed on the International Space Station (ISS). Its mission goals include investigating the possible presence of nearby sources of high-energy electrons, performing direct measurements of observables sensitive to the details of the acceleration and propagation of galactic particles, and detecting potential dark matter signatures. CALET measures cosmic-ray electron+positron flux up to 20 TeV, gamma rays up to 10 TeV, and nuclei up to 1,000 TeV. Charge measurements cover from Z=1 to 40 allowing to study the more abundant elements and to extend the range of long-term observations above iron. CALET is collecting science data on the International Space Station since October 2015 with excellent and continuous performance with no major interruptions. Approximately 20 million triggered events per month are recorded with energies > 10 GeV. Here, we present the highlights of CALET observations carried out during the first 5.5 years of operation, including the electron+positron energy spectrum, the spectra of protons and other nuclei, gamma-ray observations, as well as the characterization of on-orbit performance. Some results on the electromagnetic counterpart search for LIGO/Virgo gravitational wave events and the observations of solar modulation and gamma-ray bursts are also included.

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  128. Xtend, the Soft X-ray Imaging Telescope for the X-ray Imaging and Spectroscopy Mission (XRISM) Open Access

    Mori, K; Tomida, H; Nakajima, H; Okajima, T; Noda, H; Tanaka, T; Uchida, H; Hagino, K; Kobayashi, SB; Suzuki, H; Yoshida, T; Murakami, H; Uchiyama, H; Nobukawa, M; Nobukawa, KK; Yoneyama, T; Matsumoto, H; Tsuru, TG; Yamauchi, M; Hatsukade, I; Ishida, M; Maeda, Y; Hayashi, T; Tamura, K; Boissay-Malaquin, R; Sato, T; Hiraga, J; Kohmura, T; Yamaoka, K; Dotani, T; Ozaki, M; Tsunemi, H; Kanemaru, Y; Sato, J; Takaki, T; Terada, Y; Miyazaki, K; Kusunoki, K; Otsuka, Y; Yokosu, H; Yonemaru, W; Asahina, Y; Asakura, K; Yoshimoto, M; Ode, Y; Sato, J; Hakamata, T; Aoyagi, M; Aoki, Y; Tsunomachi, S; Doi, T; Aoki, D; Fujisawa, K; Kitajima, M; Hayashida, K

    SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY   Vol. 12181   2022

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    Xtend is a soft x-ray imaging telescope developed for the x-ray imaging and spectroscopy mission (XRISM). XRISM is scheduled to be launched in the Japanese fiscal year 2022. Xtend consists of the soft x-ray imager (SXI), an x-ray CCD camera, and the x-ray mirror assembly (XMA), a thin-foil-nested conically approximated Wolter-I optics. The SXI uses the P-channel, back-illuminated type CCD with an imaging area size of 31mm on a side. The four CCD chips are arranged in a 2×2 grid and can be cooled down to -120 °C with a single-stage Stirling cooler. The XMA nests thin aluminum foils coated with gold in a confocal way with an outer diameter of 45 cm. A pre-collimator is installed in front of the x-ray mirror for the reduction of the stray light. Combining the SXI and XMA with a focal length of 5.6m, a field of view of 38′ × 38′ over the energy range from 0.4 to 13 keV is realized. We have completed the fabrication of the flight model of both SXI and XMA. The performance verification has been successfully conducted in a series of sub-system level tests. We also carried out on-ground calibration measurements and the data analysis is ongoing.

    DOI: 10.1117/12.2626894

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  129. SOlar Neutron and Gamma-ray Spectroscopy Mission (SONGS)

    Kazutaka Yamaoka, Hiroyasu Tajima, Kikuko Miyata, Masaki Usami, Toyoki Watabe, Koji Matsushita, Kazuya Ito, Kazuhiro Nakazawa, Satoshi Masuda, Koichi Tani, Masaki Arai, Satoshi Hatori, Kyo Kume, Satoshi Mizushima, Hiromitsu Takahashi, Kyoko Watanabe

    Proceedings of SPIE - The International Society for Optical Engineering   Vol. 12181   2022

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    The SOlar Neutron and Gamma-ray Spectroscopy (SONGS) mission is a 3U cubesat dedicated for detecting neutrons and gamma-rays associated with intense solar flares. Solar neutron observations have not been in progress because ground-based observations are affected by attenuation in the Earth atmosphere, and there is no dedicated mission in space at present. Hence, we are now developing in collaboration between science and engineering people at universities, and preparing for launch around 2024 during the next solar maximum. The SONGS carries a novel radiation detector which consists of multi-layered plastic scintillator bars and GAGG(Ce) scintillator array so that it can determine energies for both neutrons and gamma-rays. In total 704 signals from Silicon photo-multipliers (SiPMs) are processed by 45 ASICs with very low power consumption, and realized within limited resources. In this presentation, we will describe scientific motivation, mission and instrument overview, and results from the bread-board model (BBM).

    DOI: 10.1117/12.2629131

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  130. Solar Neutron and Gamma-ray Detector for a 3U CubeSat Open Access

    Yamaoka K., Tajima H., Miyata K., Inamori T., Sasai Y., Kawahara H., Park J.H., Nakazawa K., Masuda S., Matsushita K., Itoh K., Nobashi D., Takahashi H., Watanabe K.

    Proceedings of Science   Vol. 358   2021.7

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    Solar neutron observations are very important on understanding of particle acceleration mechanism in the Sun. However, previous ground-based observations with large area telescope (∼10 m2)at high latitude are not sensitive to solar neutrons due to attenuation in the earth atmosphere and roughly 10 detection since its discovery in 1980. From space, the SEDA-AP instrument with much smaller area (100 cm2) onboard the International Space Station (ISS) monitored solar neutrons including charged particles, and successfully detected more than 30 detection since its launch in 2009. Unfortunately the SEDA-AP operation was stopped on March 2018. To overcome situation for no mission dedicated for solar neutrons, we have designed and developed a solar neutron and gamma-ray detector for a 3U cubesat with a size of 30×10×10 cm. Actually we launched the 50-kg class ChubuSat-2 satellite for solar neutron observations on February 2016, and have now been adjusting it to a 3U cubesat application. The solar neutron and gamma-ray detector consists of multi-layered plastic scintillator bars, and GAGG(Ce) scintillator array, and both of them are read out with silicon photo-multipliers (Si PMs). More than 600 signals from Si PMs are processed by ASICs. In this paper, we will describe details of the detector and performance of its breadboard model (BBM).

    DOI: 10.22323/1.358.1173

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  131. Solar Neutron and Gamma-ray Detector for a 3U CubeSat

    Yamaoka K., Tajima H., Miyata K., Inamori T., Sasai Y., Kawahara H., Park J.H., Nakazawa K., Masuda S., Matsushita K., Itoh K., Nobashi D., Takahashi H., Watanabe K.

    Proceedings of Science   Vol. 358   2021.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of Science  

    Solar neutron observations are very important on understanding of particle acceleration mechanism in the Sun. However, previous ground-based observations with large area telescope (∼10 m<sup>2</sup>)at high latitude are not sensitive to solar neutrons due to attenuation in the earth atmosphere and roughly 10 detection since its discovery in 1980. From space, the SEDA-AP instrument with much smaller area (100 cm<sup>2</sup>) onboard the International Space Station (ISS) monitored solar neutrons including charged particles, and successfully detected more than 30 detection since its launch in 2009. Unfortunately the SEDA-AP operation was stopped on March 2018. To overcome situation for no mission dedicated for solar neutrons, we have designed and developed a solar neutron and gamma-ray detector for a 3U cubesat with a size of 30×10×10 cm. Actually we launched the 50-kg class ChubuSat-2 satellite for solar neutron observations on February 2016, and have now been adjusting it to a 3U cubesat application. The solar neutron and gamma-ray detector consists of multi-layered plastic scintillator bars, and GAGG(Ce) scintillator array, and both of them are read out with silicon photo-multipliers (Si PMs). More than 600 signals from Si PMs are processed by ASICs. In this paper, we will describe details of the detector and performance of its breadboard model (BBM).

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  132. Measurement of the Iron Spectrum in Cosmic Rays from 10 GeV/n to 2.0 TeV/n with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W. R., Bongi M., Brogi P., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Ebisawa K., Fuke H., Gonzi S., Guzik T. G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H. S., Krizmanic J. F., Link J., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori M., Mori N., Motz H. M., Munakata K., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Stolzi F., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    PHYSICAL REVIEW LETTERS   Vol. 126 ( 24 ) page: 241101   2021.6

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    The Calorimetric Electron Telescope (CALET), in operation on the International Space Station since 2015, collected a large sample of cosmic-ray iron over a wide energy interval. In this Letter a measurement of the iron spectrum is presented in the range of kinetic energy per nucleon from 10 GeV/n to 2.0 TeV/n allowing the inclusion of iron in the list of elements studied with unprecedented precision by space-borne instruments. The measurement is based on observations carried out from January 2016 to May 2020. The CALET instrument can identify individual nuclear species via a measurement of their electric charge with a dynamic range extending far beyond iron (up to atomic number Z=40). The energy is measured by a homogeneous calorimeter with a total equivalent thickness of 1.2 proton interaction lengths preceded by a thin (3 radiation lengths) imaging section providing tracking and energy sampling. The analysis of the data and the detailed assessment of systematic uncertainties are described and results are compared with the findings of previous experiments. The observed differential spectrum is consistent within the errors with previous experiments. In the region from 50 GeV/n to 2 TeV/n our present data are compatible with a single power law with spectral index -2.60±0.03.

    DOI: 10.1103/PhysRevLett.126.241101

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  133. Silicon photomultiplier (Si-PM) comparisons for low-energy gamma ray readouts with BGO and CsI (Tl) scintillators Reviewed International coauthorship

    Takahashi, H., Hirade, N., Uchida, N., Hirose, K., Mizuno, T., Fukazawa, Y., Yamaoka, K., Tajima, H., Ohno, M.

    Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment   Vol. 989   page: 164945 - 164945   2021.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier {BV}  

    We studied herein the low-energy performances of three multi-pixel photon counters (MPPCs, silicon photo-multipliers, Si-PMs), namely, S13360-6050VE, S13360-6050CS, and S14160-6050HS, provided by Hamamatsu K.K. to read 1 cm(3) BGO and CsI (Tl) scintillators. S13360s had 1/4 lower dark currents, while S14160-6050HS had 25% higher quantum efficiency and 1.5x higher gain with a lower operational voltage. S13360-6050VE and S14160-6050HS were used for surface mounting, while S13360-6050CS was in a black ceramic case. We changed the overvoltage and found that the best performances are achieved at overvoltages of +4 V and +2.5 V for S13360s and S14160-6050HS, respectively. In the case of the BGO scintillator, S13360-6050VE obtained a lower threshold of 6 keV compared to 9 keV of S14160-6050HS. Both surface-mounting Si-PMs achieved an energy resolution of similar to 35% at 59.5 keV of the Am-241 source. The threshold and the energy resolution of S13360-6050CS were the worst, because the black case absorbed approximately half of the scintillation photons. The CsI (Tl) scintillator yielded a number of scintillation photons that was 6x higher than the BGO. The same trends were measured for the three MPPCs. This result is attributable to the lower threshold determined by the dark current, and the energy resolution mainly dominated by the statistical fluctuation of the scintillation photons.

    DOI: 10.1016/j.nima.2020.164945

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  134. Annealing of proton radiation damages in Si-PM at room temperature

    Hirade N.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 986   2021.1

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    DOI: 10.1016/j.nima.2020.164673

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  135. Performance evaluation of GAGG(Ce)/LFS scintillator + MPPC array readout with ASIC Open Access

      Vol. 986   2021.1

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    DOI: 10.1016/j.nima.2020.164811

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  136. Status of x-ray imaging and spectroscopy mission (XRISM) Open Access

    Makoto S. Tashiro, Hironori Maejima, Kenichi Toda, Richard L. Kelley, Lillian Reichenthal, Leslie Hartz, Robert Petre, Brian J. Williams, Matteo Guainazzi, Elisa Costantini, Ryuichi Fujimoto, Kiyoshi Hayashida, Joy Henegar-Leon, Matt Holland, Yoshitaka Ishisaki, Caroline Kilbourne, Mike Loewenstein, Kyoko Matsushita, Koji Mori, Takashi Okajima, F. Scott Porter, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Hiroya Yamaguchi, Shin Watanabe, Hiroki Akamatsu, Yoshitaka Arai, Marc Audard, Hisamitsu Awaki, Iurii Babyk, Aya Bamba, Nobutaka Bando, Ehud Behar, Thomas Bialas, Rozenn Boissay-Malaquin, Laura Brenneman, Greg Brown, Edgar Canavan, Meng Chiao, Brian Comber, Lia Corrales, Renata Cumbee, Cor de Vries, Jan-Willem den Herder, Johannes Dercksen, Maria Diaz-Trigo, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Yutaka Fujita, Yasushi Fukazawa, Akihiro Furuzawa, Luigi Gallo, Nathalie Gorter, Martin Grim, Liyi Gu, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, David Hawthorn, Katsuhiro Hayashi, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Takafumi Horiuchi, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Sayuri Iga, Ryo Iizuka, Manabu Ishida, Naoki Ishihama, Kumi Ishikawa, Kosei Ishimura, Tess Jaffe, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Steven Kenyon, Mark Kimball, Takao Kitaguti, Shunji Kitamoto, Shogo Kobayashi, Akihide Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Muzi Li, Tom Lockard, Yoshitomo Maeda, Maxim Markevitch, Connor Martz, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McLaughlin, Brian McNamara, Joseph Miko, Eric Miller, Jon Miller, Kenji Minesugi, Shinji Mitani, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Kazuhiro Nakazawa, Chikara Natsukari, Kenichiro Nigo, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, Paul Plucinsky, Katja Pottschmidt, Michael Sampson, Takahiro Sasaki, Kosuke Sato, Rie Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall Smith, Kazunori Someya, Yang Soong, Keisuke Sugawara, Yasuharu Sugawara, Andy Szymkowiak, Hiromitsu Takahashi, Toshiaki Takeshima, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Tomomi Watanabe, Michael Wittheof, Rob Wolfs, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Tessei Yoshida, Nasa Yoshioka, Irina Zhuravleva

    Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray   Vol. 11444   2021

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    DOI: 10.1117/12.2565812

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  137. Soft X-ray Imager (SXI) for Xtend onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

    Nakajima, H; Hayashida, K; Tomida, H; Mori, K; Noda, H; Matsumoto, H; Yoneyama, T; Okazaki, K; Asakura, K; Hanaoka, M; Hattori, K; Ishikura, A; Sakuma, S; Tanaka, T; Uchida, H; Tsuru, TG; Amano, Y; Okon, H; Yamauchi, M; Hatsukade, I; Nishioka, Y; Kanemaru, Y; Sato, J; Takaki, T; Terada, Y; Yoshida, T; Kohmura, T; Hagino, K; Kobayashi, S; Murakami, H; Kashimura, H; Uchiyama, H; Yamaoka, K; Nobukawa, M; Sako, T; Nobukawa, K; Saito, M; Hiraga, JS; Urabe, Y; Yoshida, M; Dotani, T; Ozaki, M; Tsunemi, H

    SPACE TELESCOPES AND INSTRUMENTATION 2020: ULTRAVIOLET TO GAMMA RAY   Vol. 11444   2021

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Proceedings of SPIE the International Society for Optical Engineering  

    Soft X-ray Imager (SXI) is the X-ray CCD camera onboard X-Ray Imaging and Spectroscopy Mission (XRISM) that is scheduled to be launched in Japanese fiscal year 2022. Combining the SXI with an X-ray mirror assembly, we realize the Soft X-ray Imaging Telescope (Xtend) with a focal length of 5.6 m and a field of view of 38 arcmin square. The high quantum efficiency of the focal-plane sensor, P-channel back-illumination type CCD, brings about the wide effective energy range from 0.4 to 13 keV with moderate energy resolution. Although the design of the SXI for XRISM is basically identical to that for Hitomi satellite, we have applied several improvements to the CCDs in terms of the charge transfer inefficiency (CTI) and the optical blocking performance. For the former issue, we introduce a notch implant in the charge transfer path to reduce the CTI increase in orbit. For the latter, we change the design of aluminum layers on the incident surface of the CCDs to decrease incoming visible light and/or infrared. Four flight model (FM) CCDs have been selected considering several items including energy resolution at 5.9 keV, CTI, dark current, etc. We have also completed calibration campaign for all the FM CCDs. Initial analyses show that the response function for monochromatic X-rays is basically the same as that of Hitomi CCDs. Front-end ASIC have been confirmed to properly function even after the long-term storage after the manufacture for Hitomi SXI. Then the analog electronics for driving CCDs and for processing the output analog signals have been implemented. Their functional tests have been completed with no problem. The focal plane including the single-stage Stirling cooler has been assembled. Production of key parts in SXI sensor body such as contamination blocking filter and onboard calibration source has been finished and they are waiting for assemble. The digitized signals of the CCD are corrected step by step before conversion to X-ray energy. We are preparing calibration database for the correction such as CTI, gain, and line redistribution function.

    DOI: 10.1117/12.2560348

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  138. High-redshift gamma-ray burst for unraveling the Dark Ages Mission - HiZ-GUNDAM -

    Yonetoku, D; Mihara, T; Doi, A; Sakamoto, T; Tsumura, K; Ioka, K; Amaya, Y; Arimoto, M; Enoto, T; Fujii, T; Goto, H; Gunji, S; Hiraga, J; Ikeda, H; Kawai, N; Kurosawa, S; Li, J; Maeda, Y; Mitsuishi, I; Murakami, T; Nakagawa, Y; Ogino, N; Ohno, M; Sawano, T; Sei, K; Serino, M; Sugita, S; Tamagawa, T; Tamura, K; Tanaka, T; Tanimori, T; Tashiro, MS; Tomida, H; Wang, H; Yamaguchi, T; Yamamoto, A; Yamaoka, K; Yamauchi, M; Yatsu, Y; Yoshida, A; Yuhi, D; Akitaya, H; Fukui, A; Ita, Y; Kaneda, H; Kawabata, K; Kawata, Y; Kurimata, M; Matsumoto, T; Matsuura, S; Miyasaka, A; Motohara, K; Narita, N; Noda, H; Ohashi, A; Okita, H; Sano, K; Tanaka, M; Urata, Y; Wada, T; Yamaguchi, H; Yanagisawa, K; Yoshida, M; Asano, K; Inayoshi, K; Inoue, S; Ito, H; Izumiura, H; Kawanaka, N; Kinugawa, T; Kisaka, S; Kiuchi, K; Kyutoku, K; Matsumoto, J; Mizuta, A; Murase, K; Nagakura, H; Nagataki, S; Nakada, Y; Nakamura, T; Niino, Y; Suwa, Y; Takahashi, K; Tanaka, T; Toma, K; Totani, T; Yamazaki, R; Yokoyama, J

    SPACE TELESCOPES AND INSTRUMENTATION 2020: ULTRAVIOLET TO GAMMA RAY   Vol. 11444   2021

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    HiZ-GUNDAM is a future satellite mission which will lead the time-domain astronomy and the multi-messenger astronomy through observations of high-energy transient phenomena. A mission concept of HiZ-GUNDAM was approved by ISAS/JAXA, and it is one of the future satellite candidates of JAXA's medium-class mission. We are in pre-phase A (before pre-project) and elaborating the mission concept, mission/system requirements for the launch in the late 2020s. The main themes of HiZ-GUNDAM mission are (1) exploration of the early universe with high-redshift gamma-ray bursts, and (2) contribution to the multi-messenger astronomy. HiZ-GUNDAM has two kinds of mission payload. The wide field X-ray monitors consist of Lobster Eye optics array and focal imaging sensor, and monitor ~1 steradian field of view in 0.5 - 4 keV energy range. The near infrared telescope has an aperture size 30 cm in diameter, and simultaneously observes four wavelength bands between 0.5 - 2.5 µm. In this paper, we introduce the mission overview of HiZ-GUNDAM.

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  139. CALET on the International Space Station: a precise measurement of the iron spectrum Open Access

    Checchia C., Stolzi F., Akaike Y., Adriani O., Akaike Y., Asano K., Asaoka Y., Berti E., Bigongiari G., Binns W.R., Bongi M., Brogi P., Bruno A., Buckley J.H., Cannady N., Castellini G., Checchia C., Cherry M.L., Collazuol G., Ebisawa K., Ficklin A.W., Fuke H., Gonzi S., Guzik T.G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M.H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kobayashi K., Kohri K., Krawczynski H.S., Krizmanic J.F., Maestro P., Marrocchesi P.S., Messineo A.M., Mitchell J.W., Miyake S., Moiseev A.A., Mori M., Mori N., Motz H.M., Munakata K., Nakahira S., Nishimura J., de Nolfo G.A., Okuno S., Ormes J.F., Ospina N., Ozawa S., Pacini L., Papini P., Rauch B.F., Ricciarini S.B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Spillantini P., Sugita S., Sulaj A., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Zober W.V.

    Proceedings of Science   Vol. 398   2021

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    The Calorimetric Electron Telescope (CALET) was launched on the International Space Station in 2015 and since then has collected a large sample of cosmic-ray charged particles over a wide energy. Thanks to a couple of layers of segmented plastic scintillators placed on top of the detector, the instrument is able to identify the charge of individual elements from proton to iron (and above). The imaging tungsten scintillating fiber calorimeter provides accurate particle tracking and the lead tungstate homogeneous calorimeter can measured the energy with a wide dynamic range. One of the CALET scientific objectives is to measure the energy spectra of cosmic rays to shed light on their acceleration and propagation in the Galaxy. By the observation in first five years, a precise measurement of the iron spectrum is now available in the range of kinetic energy per nucleon from 10 GeV/n to 2 TeV/n. The CALET's result with a description of the analysis and details on systematic uncertainties will be illustrated. Also, a comparison with previous experiments' results is given.

    DOI: 10.22323/1.398.0086

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  140. Experimental studies on the charge transfer inefficiency of CCD developed for the soft X-ray imaging telescope Xtend aboard the XRISM satellite Open Access

    Kanemaru Y.

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   Vol. 984   2020.12

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    DOI: 10.1016/j.nima.2020.164646

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  141. Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10  GeV/n to 2.2  TeV/n with the Calorimetric Electron Telescope on the International Space Station Open Access

    O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, M. G. Bagliesi, E. Berti, G. Bigongiari, W. R. Binns, M. Bongi, P. Brogi, A. Bruno, J. H. Buckley, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, K. Ebisawa, H. Fuke, S. Gonzi, T. G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. S. Krawczynski, J. F. Krizmanic, J. Link, P. Maestro, P. S. Marrocchesi, A. M. Messineo, J. W. Mitchell, S. Miyake, A. A. Moiseev, M. Mori, N. Mori, H. M. Motz, K. Munakata, S. Nakahira, J. Nishimura, G. A. de Nolfo, S. Okuno, J. F. Ormes, N. Ospina, S. Ozawa, L. Pacini, F. Palma, P. Papini, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, R. Sparvoli, P. Spillantini, F. Stolzi, S. Sugita, J. E. Suh, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida

    Physical Review Letters   Vol. 125 ( 25 ) page: 251102   2020.12

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    DOI: 10.1103/PhysRevLett.125.251102

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    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.125.251102/fulltext

  142. Rgb image prioritization using convolutional neural network on a microprocessor for nanosatellites Open Access

    Park J.H.

    Remote Sensing   Vol. 12 ( 23 ) page: 1-22   2020.12

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    DOI: 10.3390/rs12233941

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  143. Optical blocking performance of CCDs developed for the X-ray Astronomy Satellite XRISM Open Access

    Uchida Hiroyuki, Tanaka Takaaki, Amano Yuki, Okon Hiromichi, Tsuru Takeshi G., Nakajima Hiroshi, Noda Hirofumi, Hayashida Kiyoshi, Matsumoto Hironori, Hanaoka Maho, Yoneyama Tomokage, Okazaki Koki, Asakura Kazunori, Sakuma Shotaro, Hattori Kengo, Ishikura Ayami, Saito Mariko, Nobukawa Kumiko K., Tomida Hiroshi, Kanemaru Yoshiaki, Sato Jin, Takaki Toshiyuki, Terada Yuta, Mori Koji, Kashimura Hikari, Kohmura Takayoshi, Hagino Kouichi, Murakami Hiroshi, Kobayashi Shogo B., Nishioka Yusuke, Yamauchi Makoto, Hatsukade Isamu, Sako Takashi, Nobukawa Masayoshi, Urabe Yukino, Hiraga Junko S., Uchiyama Hideki, Yamaoka Kazutaka, Ozaki Masanobu, Dotani Tadayasu, Tsunemi Hiroshi, Suzuki Hisanori, Takagi Shin-ichiro, Sugimoto Kenichi, Atsumi Sho, Tanaka Fumiya

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 978   2020.10

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    DOI: 10.1016/j.nima.2020.164374

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  144. Origin of the in-orbit instrumental background of the Hard X-ray Imager onboard Hitomi Open Access

    Kouichi Hagino, Hirokazu Odaka, Goro Sato, Tamotsu Sato, Hiromasa Suzuki, Tsunefumi Mizuno, Madoka Kawaharada, Masanori Ohno, Kazuhiro Nakazawa, Shogo B. Kobayashi, Hiroaki Murakami, Katsuma Miyake, Makoto Asai, Tatsumi Koi, Greg Madejski, Shinya Saito, Dennis H. Wright, Teruaki Enoto, Yasushi Fukazawa, Katsuhiro Hayashi, Jun Kataoka, Junichiro Katsuta, Motohide Kokubun, Philippe Laurent, François Lebrun, Olivier Limousin, Daniel Maier, Kazuo Makishima, Kunishiro Mori, Takeshi Nakamori, Toshio Nakano, Hirofumi Noda, Masayuki Ohta, Rie Sato, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin’ichiro Takeda, Takaaki Tanaka, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Shin Watanabe, Kazutaka Yamaoka, Yoichi Yatsu, Takayuki Yuasa

    Journal of Astronomical Telescopes, Instruments, and Systems   Vol. 6 ( 4 )   2020.10

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    DOI: 10.1117/1.JATIS.6.4.046003

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  145. CALET on the International Space Station: The first three years of observations Open Access

    Brogi, P., Adriani, O., Adriani, O., Akaike, Y., Akaike, Y., Asano, K., Asaoka, Y., Bagliesi, M.G., Berti, E., Bigongiari, G., Binns, W.R., Bonechi, S., Bongi, M., Bruno, A., Buckley, J.H., Cannady, N., Castellini, G., Checchia, C., Cherry, M.L., Collazuol, G., Di Felice, V., Ebisawa, K., Fuke, H., Guzik, T.G., Hams, T., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M.H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawanaka, N., Kawakubo, Y., Kohri, K., Krawczynski, H.S., Krizmanic, J.F., Link, J., Maestro, P., Marrocchesi, P.S., Messineo, A.M., Mitchell, J.W., Miyake, S., Moiseev, A.A., Moiseev, A.A., Mori, M., Mori, N., Motz, H.M., Munakata, K., Murakami, H., Nakahira, S., Nishimura, J., De Nolfo, G.A., Okuno, S., Ormes, J.F., Ospina, N., Ozawa, S., Pacini, L., Palma, F., Palma, F., Papini, P., Rauch, B.F., Ricciarini, S.B., Sakai, K., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Sparvoli, R., Spillantini, P., Stolzi, F., Stolzi, F., Sugita, S., Suh, J.E., Suh, J.E., Sulaj, A., Takahashi, I., Takita, M., Tamura, T., Terasawa, T., Torii, S., Torii, S., Tsunesada, Y., Uchihori, Y., Vannuccini, E., Wefel, J.P., Yamaoka, K., Yanagita, S., Yoshida, A., Yoshida, K.

    Physica Scripta   Vol. 95 ( 7 )   2020.7

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    DOI: 10.1088/1402-4896/ab957d

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  146. Study on possible proton-induced background of LaBr<sub>3</sub>(Ce) scintillator in a low-earth orbit

    Mizushima, T; Yoshida, A; Yamaoka, K; Hatori, S; Kume, K

    X-RAY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IX   Vol. 11454   2020

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    Cerium-doped Lanthanum Bromide [LaBr3(Ce)] is a relatively newly developed inorganic scintillator with high performance for X/gamma-rays. It has high light yield, good energy resolution, and suitable time response for X/gamma- ray spectroscopy in comparison with NaI(Tl) conventionally used for spaceexperiments. Although NaI(Tl), especially using a cleaved surface forthe entrance window, was regarded as the most suitable scintillatorfor the spectroscopy of photons in the hard X-ray to gamma-ray band, a large amount of induced background from radio-activated iodinepolluted observed spectra, which were caused by charged particleirradiation in a high radiation region such as South Atlantic Anomalyin space experiments (e.g., Murakami et al. 1989). LaBr3(Ce) could have comparable or even better performance toNaI(Tl). There is, however, very limited knowledge about radio-activated LaBr3(Ce) estimated in a low-earth orbit. To verify the degradation of performance by high charged particle radiation field estimated in a low-earth orbit, we performed proton irradiation experiments using a synchrotron accelerator at TheWakasa Bay Energy Research Center. We performed irradiation experiments of LaBr3(Ce) using proton beams with 20, 70, 140 MeV. The crystal has the size of 0.5 inch in diameter and a thickness of 0.5 inch; the thickness is the same as the gamma-ray burst detector flown after for the CALET experiment (Yamaoka et al. 2013). The measurement has been done to take gamma-ray spectra from the radio-activated LaBr3(Ce) crystal during the period from 7 minutes to 3.8 days after the proton irradiation. As a result, we detected 24 gamma-ray peak sand identified 19 nuclides by activation. We also found that the nuclides generated by the proton irradiation can be divided into two types; short-lived nuclides (half-life shorter than 24 hours) and long-lived nuclides (half- life longer than a day). From the results, we estimated that the background rate of LaBr3(Ce) in a low-earth orbitexpected for such as the International Space Station was several counts per second, which was smaller than that for Cosmic X-ray background from an opening angle of about a pi steradian. The contamination suffered from radio-activation of LaBr3(Ce) crystal was sufficiently small for spectroscopy with a large field-of-view taken forsuch as gamma-ray transient observations.

    DOI: 10.1117/12.2560810

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  147. CALET results after three years on the International Space Station Open Access

    Asaoka Y., Adriani O., Akaike Y., Asano K., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Link J., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori M., Mori N., Motz H. M., Munakata K., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Opsina N., Ormes J. F., Ozawa S., Pacini L., Palma F., Pal'shin V., Papini P., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Sugita S., Suh J. E., Sulaj A., Takahashi I., Takita M., Tamura T., Terasawa T., Torii S., Tsunesada Y., Uchihori Y., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019)   Vol. 1468 ( 1 )   2020

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    DOI: 10.1088/1742-6596/1468/1/012074

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  148. Lecture series for encouraging commercial space utilization for the general public

    Kikuko Miyata, Kota Tomioka, Kazutaka Yamaoka, Hidetaka Tanaka, Hiroyasu Tajima

    Proceedings of the International Astronautical Congress, IAC   Vol. 2020-   2020

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  149. First Detection of Radio Linear Polarization in a Gamma-Ray Burst Afterglow Open Access

    Urata Y.

    Astrophysical Journal Letters   Vol. 884 ( 2 )   2019.10

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    DOI: 10.3847/2041-8213/ab48f3

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  150. Spectral properties of gamma-ray bursts observed by the Suzaku wide-band all-sky monitor Reviewed Open Access

    Ohmori, N., Yamaoka, K., Yamauchi, M., Urata, Y., Ohno, M., Sugita, S., Hurley, K., Tashiro, M.S., Fukazawa, Y., Iwakiri, W., Katsukura, D., Kokubun, M., Makishima, K., Murakami, S., Nakagawa, Y.E., Nakazawa, K., Odaka, K., Takahashi, K., Takahashi, T., Terada, Y.

    Publications of the Astronomical Society of Japan   Vol. 71 ( 4 )   2019.8

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    DOI: 10.1093/pasj/psz054

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  151. ALMA Polarimetry of AT2018cow Open Access

    Huang Kuiyun, Shimoda Jiro, Urata Yuji, Toma Kenji, Yamaoka Kazutaka, Asada Keiichi, Nagai Hiroshi, Takahashi Satoko, Petitpas Glen, Tashiro Makoto

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 878 ( 1 )   2019.6

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    DOI: 10.3847/2041-8213/ab23fd

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  152. Unveiling the nature of compact object in the LMXB MAXI J1957+032 using Swift-XRT Open Access

    Beri A.

    Monthly Notices of the Royal Astronomical Society   Vol. 486 ( 2 ) page: 1620-1628   2019.6

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    DOI: 10.1093/mnras/stz938

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  153. Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Bruno A., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V, Ebisawa K., Fuke H., Guzik T. G., Hams T., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V, Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Suh J. E., Sulaj A., Takahashi I, Takayanagi M., Takita M., Tamura T., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    PHYSICAL REVIEW LETTERS   Vol. 122 ( 18 ) page: 181102   2019.5

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    DOI: 10.1103/PhysRevLett.122.181102

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  154. Event-selection technique for the multi-layer Si-CdTe Compton camera onboard Hitomi Open Access

    Ohno Masanori, Fukazawa Yasushi, Mizuno Tsunefumi, Takahashi Hiromitsu, Tanaka Yasuyuki, Katsuta Jun'ichiro, Kawano Takafumi, Habata Sho, Okada Chiho, Ohashi Norie, Teramae Takuto, Tanaka Koji, Takahashi Tadayuki, Kokubun Motohide, Watanabe Shin, Sato Goro, Sato Rie, Ohta Masayuki, Uchida Yusuke, Tamaru Ryota, Yoneda Hiroki, Nakazawa Kazuhiro, Murakami Hiroaki, Tajima Hiroyasu, Yamaoka Kazutaka, Kinoshita Masaomi, Hayashi Katsuhiro, Kitaguchi Takao, Odaka Hirokazu

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 924   page: 327-331   2019.4

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    DOI: 10.1016/j.nima.2018.09.114

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  155. Radiation hardness of a p-channel notch CCD developed for the X-ray CCD camera onboard the XRISM satellite Open Access

    Kanemaru Y., Sato J., Mori K., Nakajima H., Nishioka Y., Takeda A., Hayashida K., Matsumoto H., Iwagaki J., Okazaki K., Asakura K., Yoneyama T., Uchida H., Okon H., Tanaka T., Tsuru T. G., Tomida H., Shimoi T., Kohmura T., Hagino K., Murakami H., Kobayashi S. B., Yamauchi M., Hatsukade I., Nobukawa M., Nobukawa K. K., Hiraga J. S., Uchiyama H., Yamaoka K., Ozaki M., Dotani T., Tsunemi H., Hamano T.

    JOURNAL OF INSTRUMENTATION   Vol. 14   2019.4

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    DOI: 10.1088/1748-0221/14/04/C04003

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  156. The CALorimetric Electron Telescope (CALET) on the International Space Station: Results from the First Two Years of Operation Open Access

    Asaoka Y., Adriani O., Akaike Y., Asano K., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Bruno A., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V, Ebisawa K., Fuke H., Guzik T. G., Hams T., Hasebe N., Hibinov K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., De Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Pal'shin V, Papini P., Penacchioni A. V, Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Sugita S., Suh J. E., Sulaj A., Takahashi I, Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    XX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS (ISVHECRI 2018)   Vol. 208   2019

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    DOI: 10.1051/epjconf/201920813001

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  157. The CALorimetric Electron Telescope (CALET) on the International Space Station: Results from the First Two Years On Orbit Open Access

    Asaoka Y., Adriani O., Akaike Y., Asano K., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Bruno A., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., De Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Pal'shin V., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Sugita S., Suh J. E., Sulaj A., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    26TH EXTENDED EUROPEAN COSMIC RAY SYMPOSIUM   Vol. 1181 ( 1 )   2019

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    DOI: 10.1088/1742-6596/1181/1/012003

    Open Access

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  158. Solar neutron and gamma-ray detector for a 3U Cubesat Open Access

    Kazutaka Yamaoka, Hiroyasu Tajima, Kikuko Miyata, Takaya Inamori, Yoshinori Sasai, Hiroaki Kawahara, Ji Hyun Park, Kazuhiro Nakazawa, Satoshi Masuda, Koji Matsushita, Kazuya Itoh, Daiki Nobashi, Hiromitsu Takahashi, Kyoko Watanabe

    Proceedings of Science   Vol. 358   2019

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    © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). Solar neutron observations are very important on understanding of particle acceleration mechanism in the Sun. However, previous ground-based observations with large area telescope (~10 m2)at high latitude are not sensitive to solar neutrons due to attenuation in the earth atmosphere and roughly 10 detection since its discovery in 1980. From space, the SEDA-AP instrument with much smaller area (100 cm2) onboard the International Space Station (ISS) monitored solar neutrons including charged particles, and successfully detected more than 30 detection since its launch in 2009. Unfortunately the SEDA-AP operation was stopped on March 2018. To overcome situation for no mission dedicated for solar neutrons, we have designed and developed a solar neutron and gamma-ray detector for a 3U cubesat with a size of 30×10×10 cm. Actually we launched the 50-kg class ChubuSat-2 satellite for solar neutron observations on February 2016, and have now been adjusting it to a 3U cubesat application. The solar neutron and gamma-ray detector consists of multi-layered plastic scintillator bars, and GAGG(Ce) scintillator array, and both of them are read out with silicon photo-multipliers (Si PMs). More than 600 signals from Si PMs are processed by ASICs. In this paper, we will describe details of the detector and performance of its breadboard model (BBM).

    DOI: 10.22323/1.358.1173

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  159. Solar neutron and gamma-ray detector for a 3U Cubesat Open Access

    Yamaoka K., Tajima H., Miyata K., Inamori T., Sasai Y., Kawahara H., Park J.H., Nakazawa K., Masuda S., Matsushita K., Itoh K., Nobashi D., Takahashi H., Watanabe K.

    Proceedings of Science   Vol. 358   2019

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    Solar neutron observations are very important on understanding of particle acceleration mechanism in the Sun. However, previous ground-based observations with large area telescope (~10 m2)at high latitude are not sensitive to solar neutrons due to attenuation in the earth atmosphere and roughly 10 detection since its discovery in 1980. From space, the SEDA-AP instrument with much smaller area (100 cm2) onboard the International Space Station (ISS) monitored solar neutrons including charged particles, and successfully detected more than 30 detection since its launch in 2009. Unfortunately the SEDA-AP operation was stopped on March 2018. To overcome situation for no mission dedicated for solar neutrons, we have designed and developed a solar neutron and gamma-ray detector for a 3U cubesat with a size of 30×10×10 cm. Actually we launched the 50-kg class ChubuSat-2 satellite for solar neutron observations on February 2016, and have now been adjusting it to a 3U cubesat application. The solar neutron and gamma-ray detector consists of multi-layered plastic scintillator bars, and GAGG(Ce) scintillator array, and both of them are read out with silicon photo-multipliers (Si PMs). More than 600 signals from Si PMs are processed by ASICs. In this paper, we will describe details of the detector and performance of its breadboard model (BBM).

    DOI: 10.22323/1.358.1173

    Open Access

    Scopus

  160. Development of the front-end ASIC for “Xtend” aboard “XRISM”

    Kashimura H., Nakajima H., Tomida H., Arai Y., Hayashida K., Noda H., Matsumoto H., Tsunemi H., Tanaka T., Uchida H., Tsuru T. G., Mori K., Ozaki M., Dotani T., Yamauchi M., Hatsukade I., Murakami H., Nobukawa M., Nobukawa K. K., Kohmura T., Hagino K., Kobayashi S., Hiraga J. S., Uchiyama H., Yamaoka K., the XRISM Xtend

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2   page: 410 - 410   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_410

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  161. Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V., Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemtsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Uchida Yuusuke

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 6 )   2018.12

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    DOI: 10.1093/pasj/psy118

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  162. The evolution of X-ray bursts in the 'Bursting Pulsar' GRO J1744-28 Open Access

    Court J. M. C., Altamirano D., Albayati A. C., Sanna A., Belloni T., Overton T., Degenaar N., Wijnands R., Yamaoka K., Hill A. B., Knigge C.

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   Vol. 481 ( 2 ) page: 2273-2298   2018.12

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    DOI: 10.1093/mnras/sty2312

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  163. The 7-year MAXI/GSC X-Ray Source Catalog in the High Galactic Latitude Sky (3MAXI) Open Access

    Kawamuro T., Ueda Y., Shidatsu M., Hori T., Morii M., Nakahira S., Isobe N., Kawai N., Mihara T., Matsuoka M., Morita T., Nakajima M., Negoro H., Oda S., Sakamoto T., Serino M., Sugizaki M., Tanimoto A., Tomida H., Tsuboi Y., Tsunemi H., Ueno S., Yamaoka K., Yamada S., Yoshida A., Iwakiri W., Kawakubo Y., Sugawara Y., Sugita S., Tachibana Y., Yoshii T.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 238 ( 2 )   2018.10

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    DOI: 10.3847/1538-4365/aad1ef

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  164. Discovery and state transitions of the new Galactic black hole candidate MAXI J1535-571 Open Access

    Nakahira Satoshi, Shidatsu Megumi, Makishima Kazuo, Ueda Yoshihiro, Yamaoka Kazutaka, Mihara Tatehiro, Negoro Hitoshi, Kawase Tomofumi, Kawai Nobuyuki, Morita Kotaro

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 5 )   2018.10

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    DOI: 10.1093/pasj/psy093

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  165. Characteristics and Performance of the CALorimetric Electron Telescope (CALET) Calorimeter for Gamma-Ray Observations Open Access

    Cannady N., Asaoka Y., Satoh F., Tanaka M., Torii S., Cherry M. L., Mori M., Adriani O., Akaike Y., Asano K., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Castellini G., Checchia C., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Suh J. E., Sulaj A., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 238 ( 1 )   2018.9

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    DOI: 10.3847/1538-4365/aad6a3

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  166. Search for GeV Gamma-Ray Counterparts of Gravitational Wave Events by CALET Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Krawczynski H. S., Krizmanic J. F., Kohri K., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Suh J. E., Sulaj A., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    ASTROPHYSICAL JOURNAL   Vol. 863 ( 2 )   2018.8

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    DOI: 10.3847/1538-4357/aad18f

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  167. MAXI upper limits of the electromagnetic counterpart of GW170817 Open Access

    Sugita Satoshi, Kawai Nobuyuki, Nakahira Satoshi, Negoro Hitoshi, Serino Motoko, Mihara Tatehiro, Yamaoka Kazutaka, Nakajima Motoki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 4 )   2018.8

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    DOI: 10.1093/pasj/psy076

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  168. On-orbit operations and offline data processing of CALET onboard the ISS Open Access

    Asaoka Y., Ozawa S., Torii S., Adriani O., Akaike Y., Asano K., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellinilm G., Checchia C., Cherry M. L., Collazuol G., Di Felice V, Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Javaid A., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Krawczynski H. S., Krizmanic J. F., Kuramata S., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Mizutani K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Pacini L., Palma F., Papini P., Penacchioni A. V, Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Takahashi I, Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    ASTROPARTICLE PHYSICS   Vol. 100   page: 29-37   2018.7

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    DOI: 10.1016/j.astropartphys.2018.02.010

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  169. Extended Measurement of the Cosmic-Ray Electron and Positron Spectrum from 11 GeV to 4.8 TeV with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Berti E., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V, Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kohri K., Krawczynski H. S., Krizmanic J. F., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V, Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Suh J. E., Sulaj A., Takahashi I, Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K.

    PHYSICAL REVIEW LETTERS   Vol. 120 ( 26 )   2018.6

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    DOI: 10.1103/PhysRevLett.120.261102

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  170. Hitomi X-ray observation of the pulsar wind nebula G21.5-0.9 Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemtsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shinichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Uno Shinichiro, Ueda Yoshihiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Sato Toshiki, Nakaniwa Nozomu, Murakami Hiroaki, Guest Benson

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 3 )   2018.6

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    DOI: 10.1093/pasj/psy027

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  171. Modeling of proton-induced radioactivation background in hard X-ray telescopes: Geant4-based simulation and its demonstration by Hitomi's measurement in a low Earth orbit Open Access

    Odaka Hirokazu, Asai Makoto, Hagino Kouichi, Koi Tatsumi, Madejski Greg, Mizuno Tsunefumi, Ohno Masanori, Saito Shinya, Sato Tamotsu, Wright Dennis H., Enoto Teruaki, Fukazawa Yasushi, Hayashi Katsuhiro, Kataoka Jun, Katsuta Junichiro, Kawaharada Madoka, Kobayashi Shogo B., Kokubun Motohide, Laurent Philippe, Lebrun Francois, Limousin Olivier, Maier Daniel, Makishima Kazuo, Mimura Taketo, Miyake Katsuma, Mori Kunishiro, Murakami Hiroaki, Nakamori Takeshi, Nakano Toshio, Nakazawa Kazuhiro, Noda Hirofumi, Ohta Masayuki, Ozaki Masanobu, Sato Goro, Sato Rie, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Tanaka Takaaki, Tanaka Yasuyuki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Watanabe Shin, Yamaoka Kazutaka, Yasuda Tetsuya, Yatsu Yoichi, Yuasa Takayuki, Zoglauer Andreas

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 891   page: 92-105   2018.5

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    DOI: 10.1016/j.nima.2018.02.071

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  172. In-orbit performance and calibration of the Hard X-ray Imager onboard Hitomi (ASTRO-H) Open Access

    Hagino Kouichi, Nakazawa Kazuhiro, Sato Goro, Kokubun Motohide, Enoto Teruaki, Fukazawa Yasushi, Hayashi Katsuhiro, Kataoka Jun, Katsuta Junichiro, Kobayashi Shogo B., Laurent Philippe, Lebrun Francois, Limousin Olivier, Maier Daniel, Makishima Kazuo, Mimura Taketo, Miyake Katsuma, Mizuno Tsunefumi, Mori Kunishiro, Murakami Hiroaki, Nakamori Takeshi, Nakano Toshio, Noda Hirofumi, Odaka Hirokazu, Ohno Masanori, Ohta Masayuki, Saito Shinya, Sato Rie, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Tanaka Takaaki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Watanabe Shin, Yamaoka Kazutaka, Yatsu Yoichi, Yuasa Takayuki

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 4 ( 2 )   2018.4

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    DOI: 10.1117/1.JATIS.4.2.021409

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  173. Hitomi (ASTRO-H) X-ray Astronomy Satellite Open Access

    Takahashi Tadayuki, Kokubun Motohide, Mitsuda Kazuhisa, Kelley Richard L., Ohashi Takaya, Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Anabuki Naohisa, Angelini Lorella, Arnaud Keith, Asai Makoto, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Azzarello Philipp, Baluta Chris, Bamba Aya, Bando Nobutaka, Bautz Marshall W., Bialas Thomas, Blandford Roger, Boyce Kevin, Brenneman Laura W., Brown Gregory V., Bulbul Esra, Cackett Edward M., Canavan Edgar, Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, Dell Steve O', DiPirro Michael, Done Chris, Dotani Tadayasu, Doty John, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Funk Stefan, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Gilmore Kirk, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haas Daniel, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Takayuki, Hayashi Katsuhiro, Hayashida Kiyoshi, den Herder Jan-Willem, Hiraga Junko S., Hirose Kazuyuki, Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishibashi Kazunori, Ishida Manabu, Ishikawa Kumi, Ishimura Kosei, Ishisaki Yoshitaka, Itoh Masayuki, Iwai Masachika, Iwata Naoko, Iyomoto Naoko, Jewell Chris, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kara Erin, Kataoka Jun, Katsuda Satoru, Katsuta Junichiro, Kawaharada Madoka, Kawai Nobuyuki, Kawano Taro, Kawasaki Shigeo, Khangulyan Dmitry, Kilbourne Caroline A., Kimball Mark, King Ashley, Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Konami Saori, Kosaka Tatsuro, Koujelev Alex, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Masters Candace, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, Mcguinness Daniel, McNamar Brian R., Mehdipour Missagh, Miko Joseph, Miller Eric D., Miller Jon M., Mineshige Shin, Minesugi Kenji, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Moroso Franco, Moseley Harvey, Muench Theodore, Mukai Koji, Murakami Hiroshi, Murakami Toshio, Mushotzky Richard F., Nagano Housei, Nagino Ryo, Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakano Toshio, Nakashima Shinya, Nakazawa Kazuhiro, Namba Yoshiharu, Natsukari Chikara, Nishioka Yusuke, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Nomachi Masaharu, Odaka Hirokazu, Ogawa Hiroyuki, Ogawa Mina, Ogi Keiji, Ohno Masanori, Ohta Masayuki, Okajima Takashi, Okamoto Atsushi, Okazaki Tsuyoshi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Parmar Arvind, Petre Robert, Pinto Ciro, de Plaa Jelle, Pohl Martin, Pontius James, Porter Frederick S., Pottschmidt Katja, Ramsey Brian, Reynolds Christopher, Russell Helen, Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sakai Shin-ichiro, Sameshima Hiroaki, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sato Yoichi, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shibano Yasuko, Shida Maki, Shidatsu Megumi, Shimada Takanobu, Shinozaki Keisuke, Shirron Peter, Simionescu Aurora, Simmons Cynthia, Smith Randall K., Sneiderman Gary, Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Sugita Hiroyuki, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tamura Keisuke, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Ueno Shiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, de Vries Cor P., Wada Atsushi, Watanabe Shin, Watanabe Tomomi, Werner Norbert, Wik Daniel R., Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamada Takahiro, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Yoshida Atsumasa, Yuasa Takayuki, Zhuravleva Irina, Zoghbi Abderahmen

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 4 ( 2 )   2018.4

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    DOI: 10.1117/1.JATIS.4.2.021402

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  174. Hard x-ray imager onboard Hitomi (ASTRO-H) Open Access

    Nakazawa Kazuhiro, Sato Goro, Kokubun Motohide, Enoto Teruaki, Fukazawa Yasushi, Hagino Kouichi, Hayashi Katsuhiro, Kataoka Jun, Katsuta Junichiro, Kobayashi Shogo B., Laurent Philippe, Lebrun Francois, Limousin Olivier, Maier Daniel, Makishima Kazuo, Mizuno Tsunefumi, Mori Kunishiro, Nakamori Takeshi, Nakano Toshio, Noda Hirofumi, Odaka Hirokazu, Ohno Masanori, Ohta Masayuki, Saito Shinya, Sato Rie, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Tanaka Takaaki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Watanabe Shin, Yamaoka Kazutaka, Yatsu Yoichi, Yuasa Takayuki

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 4 ( 2 )   2018.4

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    DOI: 10.1117/1.JATIS.4.2.021410

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  175. Design and performance of Soft Gamma-ray Detector onboard the Hitomi (ASTRO-H) satellite Open Access

    Tajima Hiroyasu, Watanabe Shin, Fukazawa Yasushi, Blandford Roger, Enoto Teruaki, Goldwurm Andrea, Hagino Kouichi, Hayashi Katsuhiro, Ichinohe Yuto, Kataoka Jun, Katsuta Jun'ichiro, Kitaguchi Takao, Kokubun Motohide, Laurent Philippe, Lebrun Francois, Limousin Olivier, Madejski Grzegorz M., Makishima Kazuo, Mizuno Tsunefumi, Mori Kunishiro, Nakamori Takeshi, Nakano Toshio, Nakazawa Kazuhiro, Noda Hirofumi, Odaka Hirokazu, Ohno Masanori, Ohta Masayuki, Saito Shinya, Sato Goro, Sato Rie, Takeda Shin'ichiro, Takahashi Hiromitsu, Takahashi Tadayuki, Tanaka Takaaki, Tanaka Yasuyuki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Yamaoka Kazutaka, Yatsu Yoichi, Yonetoku Daisuke, Yuasao Takayuki

    JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS   Vol. 4 ( 2 )   2018.4

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    DOI: 10.1117/1.JATIS.4.2.021411

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  176. Alternative Explanations for Extreme Supersolar Iron Abundances Inferred from the Energy Spectrum of Cygnus X-1 Open Access

    Tomsick John A., Parker Michael L., Garcia Javier A., Yamaoka Kazutaka, Barret Didier, Chiu Jeng-Lun, Clavel Maica, Fabian Andrew, Furst Felix, Gandhi Poshak, Grinberg Victoria, Miller Jon M., Pottschmidt Katja, Walton Dominic J.

    ASTROPHYSICAL JOURNAL   Vol. 855 ( 1 )   2018.3

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    DOI: 10.3847/1538-4357/aaaab1

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  177. The 7-year MAXI/GSC Source Catalog of the Low-Galactic-latitude Sky (3MAXI) Open Access

    Hori T., Shidatsu M., Ueda Y., Kawamuro T., Morii M., Nakahira S., Isobe N., Kawai N., Mihara T., Matsuoka M., Morita T., Nakajima M., Negoro H., Oda S., Sakamoto T., Serino M., Sugizaki M., Tanimoto A., Tomida H., Tsuboi Y., Tsunemi H., Ueno S., Yamaoka K., Yamada S., Yoshida A., Iwakiri W., Kawakubo Y., Sugawara Y., Sugita S., Tachibana Y., Yoshii T.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 235 ( 1 )   2018.3

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    DOI: 10.3847/1538-4365/aaa89c

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  178. Temperature structure in the Perseus cluster core observed with Hitomi Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furukawa Maki, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Kato Yuichi, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shinichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shinichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psy004

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  179. Search for thermal X-ray features from the Crab nebula with the Hitomi soft X-ray spectrometer Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguch Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sato Toshiki, Sawada Makoto, Schartel Norbert, Serlemtsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Tominaga Nozomu, Moriya Takashi J.

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx072

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  180. Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furukawa Maki, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier O., Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ogorzalek Anna, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shinichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shinichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx127

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  181. Hitomi X-ray studies of giant radio pulses from the Crab pulsar Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, De Plaa Jelle, De Vries Cor P., Den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier O., Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Oshimizu Kenya, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemtsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shinichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shinichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Terasawa Toshio, Sekido Mamoru, Takefuji Kazuhiro, Kawai Eiji, Misawa Hiroaki, Tsuchiya Fuminori, Yamazaki Ryo, Kobayashi Eiji, Kisaka Shota, Aoki Takahiro

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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  182. Hitomi observations of the LMC SNR N 132 D: Highly redshifted X-ray emission from iron ejecta Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sato Toshiki, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx151

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  183. Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier O., Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Kawamuro Taiki

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx147

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  184. Glimpse of the highly obscured HMXB IGR J16318-4848 with Hitomi Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier O., Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shinichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shinichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Nakaniwa Nozomi

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx154

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  185. Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hell Natalie, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier O., Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen, Raassen A. J. J.

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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  186. Atmospheric gas dynamics in the Perseus cluster observed with Hitomi Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V, Bulbul Esra, Cackett Edward M., Canning Rebecca E. A., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, de Plaa Jelle, de Vries Cor P., den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashi Tasuku, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Shota, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousin Olivier, Loewenstein Michael, Long Knox S., Lumr David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Norukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Keigo, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, Wang Qian H. S., Watanabe Shin, Werner Norbert, Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 2 )   2018.3

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    DOI: 10.1093/pasj/psx138

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  187. Detection of the thermal component in GRB 160107A Open Access

    Kawakubo Yuta, Sakamoto Takanori, Nakahira Satoshi, Yamaoka Kazutaka, Serino Motoko, Asaoka Yoichi, Cherry Michael L., Matsukawa Shohei, Mori Masaki, Nakagawa Yujin, Ozawa Shunsuke, Penacchioni Ana V., Ricciarini Sergio B., Tezuka Akira, Torii Shoji, Yamada Yusuke, Yoshida Atsumasa

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 1 )   2018.1

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    DOI: 10.1093/pasj/psx152

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  188. Solar Neutron and Gamma-ray Spectrometer For a Small Satellite

    Yamaoka Kazutaka, Tajima Hiroyasu, Itow Yoshitaka, Fujii Hirosame, Nakanishi Yuta, Kamei Yuhei, Yamakawa Takeharu, Niwa Takumi, Okui Itsuki, Miyata Kikuko, Inamori Takaya

    HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XX   Vol. 10762   2018

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    DOI: 10.1117/12.2323451

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  189. Soft X-ray Imaging Telescope (Xtend) onboard X-ray Astronomy Recovery Mission (XARM)

    Hayashida Kiyoshi, Tomida Hiroshi, Mori Koji, Nakajima Hiroshi, Tanaka Takaaki, Uchida Hiroyuki, Tsuru Takeshi G., Murakami Hiroshi, Okajima Takashi, Kohmura Takayoshi, Hagino Kohichi, Kobayashi Shogo B., Ishida Manabu, Maeda Yoshitomo, Uchiyama Hideki, Yamaoka Kazutaka, Matsumoto Hironori, Nobukawa Masayoshi, Nobukawa Kumiko K., Hiraga Junko S., Yamauchi Makoto, Hatsukade Isamu, Soong Yang, Mori Hideyuki, Hayashi Takayuki, Tsunemi Hiroshi, Ozaki Masanobu, Dotani Tadayasu, Iwagaki Junichi, Yoneyema Tomokage, Okazaki Koki, Asakura Kazunori, Onishi Satomi, Kanemaru Yoshiaki, Sato Jin, Nishioka Yusuke, Takeda Ayaki, Okon Hiromichi, Yoshida Masayuki, Shimoi Takeo

    SPACE TELESCOPES AND INSTRUMENTATION 2018: ULTRAVIOLET TO GAMMA RAY   Vol. 10699   2018

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    DOI: 10.1117/12.2311446

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  190. Concept of X-ray Astronomy Recovery Mission Open Access

    Tashiro Makoto, Maejima Hironori, Toda Kenichi, Kelley Richard, Reichenthal Lillian, Lobell James, Petre Robert, Guainazzi Matteo, Costantini Elisa, Edison Mark, Fujimoto Ryuichi, Grim Martin, Hayashida Kiyoshi, den Herder Jan-Willem, Ishisaki Yoshitaka, Paltani Stephane, Matsushita Kyoko, Mori Koji, Sneiderman Gary, Takei Yoh, Terada Yukikatsu, Tomida Hiroshi, Akamatsu Hiroki, Angelini Lorella, Arai Yoshitaka, Awaki Hisamitsu, Babyk Iurii, Bamba Aya, Barfknecht Peter, Barnstable Kim, Bialas Thomas, Blagojevic Branimir, Bonafede Joseph, Brambora Clifford, Brenneman Laura, Brown Greg, Brown Kimberly, Burns Laura, Canavan Edgar, Carnahan Tim, Chiao Meng, Comber Brian, Corrales Lia, de Vries Cor, Dercksen Johannes, Diaz-Trigo Maria, Dillard Tyrone, DiPirro Michael, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan, Enoto Teruaki, Ezoe Yuichiro, Ferrigno Carlo, Fujita Yutaka, Fukazawa Yasushi, Furuzawa Akihiro, Gallo Luigi, Graham Steve, Gu Liyi, Hagino Kohichi, Hamaguchi Kenji, Hatsukade Isamu, Hawes Dean, Hayashi Takayuki, Hegarty Cailey, Hell Natalie, Hiraga Junko, Hodges-Kluck Edmund, Holland Matt, Hornschemeier Ann, Hoshino Akio, Ichinohe Yuto, Iizuka Ryo, Ishibashi Kazunori, Ishida Manabu, Ishikawa Kumi, Ishimura Kosei, James Bryan, Kallman Timothy, Kara Erin, Katsuda Satoru, Kenyon Steven, Kilbourne Caroline, Kimball Mark, Kitaguchi Takao, Kitamoto Shunji, Kobayashi Shogo, Kohmura Takayoshi, Koyama Shu, Kubota Aya, Leutenegger Maurice, Lockard Tom, Loewenstein Mike, Maeda Yoshitomo, Marbley Lynette, Markevitch Maxim, Martz Connor, Matsumoto Hironori, Matsuzaki Keiichi, McCammon Dan, McNamara Brian, Miko Joseph, Miller Eric, Miller Jon, Minesugi Kenji, Mitsuishi Ikuyuki, Mizuno Tsunefumi, Mori Hideyuki, Mukai Koji, Murakami Hiroshi, Mushotzky Richard, Nakajima Hiroshi, Nakamura Hideto, Nakashima Shinya, Nakazawa Kazuhiro, Natsukari Chikara, Nigo Kenichiro, Nishioka Yusuke, Nobukawa Kumiko, Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ogawa Mina, Ohashi Takaya, Ohno Masahiro, Ohta Masayuki, Okajima Takashi, Okamoto Atsushi, Onizuka Michitaka, Ota Naomi, Ozaki Masanobu, Plucinsky Paul, Porter F. Scott, Pottschmidt Katja, Sato Kosuke, Sato Rie, Sawada Makoto, Seta Hiromi, Shelton Ken, Shibano Yasuko, Shida Maki, Shidatsu Megumi, Shirron Peter, Simionescu Aurora, Smith Randall, Someya Kazunori, Soong Yang, Sugawara Yasuharu, Szymkowiak Andy, Takahashi Hiromitsu, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Terashima Yuichi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi, Uchida Hiroyuki, Uchiyama Hideki, Ueda Yoshihiro, Uno Shinichiro, Walsh Thomas, Watanabe Shin, Williams Brian, Wolfs Rob, Wright Michael, Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko, Yamauchi Shigeo, Yamauchi Makoto, Yanagase Keiichi, Yaqoob Tahir, Yasuda Susumu, Yoshioka Nasa, Zabala Jaime, Zhuravleva Irina

    SPACE TELESCOPES AND INSTRUMENTATION 2018: ULTRAVIOLET TO GAMMA RAY   Vol. 10699   2018

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  191. Space-based solar neutron observations for cubesat project

    Kikuko Miyata, Kazutaka Yamaoka, Hiroyasu Tajima

    Proceedings of the International Astronautical Congress, IAC   Vol. 2018-   2018

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  192. Development status of the soft X-ray imaging telescope ``Xtend'' for X-ray Astronomy Recovery Mission ``XARM'' (II) Open Access

    Mori K., Ishida M., Maeda Y., Murakami H., Yamauchi M., Hatsukade I., Nobukawa M., Nobukawa K. K., Kohmura T., Hagino K., Kobayashi S., Hayashida K., Hiraga J. S., Uchiyama H., Yamaoka K., Ozaki M., Dotani T., Tsunemi H., the Xtend team, Tomida H., Tanaka T., Uchida H., Tsuru T. G., Nakajima H., Matsumoto H., Okajima T.

    Meeting Abstracts of the Physical Society of Japan   Vol. 73 ( 0 ) page: 186 - 186   2018

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    DOI: 10.11316/jpsgaiyo.73.2.0_186

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  193. Solar abundance ratios of the iron-peak elements in the Perseus cluster Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Angelini Lorella, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall W., Blandford Roger, Brenneman Laura W., Brown Gregory V., Bulbul Esra, Cackett Edward M., Chernyakova Maria, Chiao Meng P., Coppi Paolo S., Costantini Elisa, De Plaa Jelle, den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan E., Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam R., Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi C., Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana M., Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko S., Hornschemeier Ann, Hoshino Akio, Hughes John P., Ichinohe Yuto, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Iwai Masachika, Kaastra Jelle, Kallman Tim, Kamae Tsuneyoshi, Kataoka Jun, Katsuda Satoru, Kawai Nobuyuki, Kelley Richard L., Kilbourne Caroline A., Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans A., Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lee Shiu-Hang, Leutenegger Maurice A., Limousine Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Greg, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian R., Mehdipour Missagh, Miller Eric D., Miller Jon M., Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Mukai Koji, Murakami Hiroshi, Mushotzky Richard F., Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Kumiko K., Nobukawa Masayoshi, Noda Hirofumi, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani StPhane, Petre Robert, Pinto Ciro, Porter Frederick S., Pottschmidt Katja, Reynolds Christopher S., Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sasaki Toru, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter J., Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall K., Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki T., Tashiro Makoto S., Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi Go, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Uno Shin'ichiro, Urry C. Megan, Ursino Eugenio, de Vries Cor P., Watanabe Shin, Werner Norbert, Wik Daniel R., Wilkins Dan R., Williams Brian J., Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Zhuravleva Irina, Zoghbi Abderahmen

    NATURE   Vol. 551 ( 7681 ) page: 478-+   2017.11

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    DOI: 10.1038/nature24301

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  194. Energy Spectrum of Cosmic-Ray Electron and Positron from 10 GeV to 3 TeV Observed with the Calorimetric Electron Telescope on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Javaid A., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Krawczynski H. S., Krizmanic J. F., Kuramata S., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Mizutani K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakahira S., Nishimura J., de Nolfo G. A., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S. B., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    PHYSICAL REVIEW LETTERS   Vol. 119 ( 18 )   2017.11

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    DOI: 10.1103/PhysRevLett.119.181101

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  195. Multi-messenger Observations of a Binary Neutron Star Merger

    Abbott B. P., Abbott R., Abbott T. D., Acernese F., Ackley K., Adams C., Adams T., Addesso P., Adhikari R. X., Adya V. B., Affeldt C., Afrough M., Agarwal B., Agathos M., Agatsuma K., Aggarwal N., Aguiar O. D., Aiello L., Ain A., Ajith P., Allen B., Allen G., Allocca A., Altin P. A., Amato A., Ananyeva A., Anderson S. B., Anderson W. G., Angelova S. V., Antier S., Appert S., Arai K., Araya M. C., Areeda J. S., Arnaud N., Arun K. G., Ascenzi S., Ashton G., Ast M., Aston S. M., Astone P., Atallah D. V., Aufmuth P., Aulbert C., AultONeal K., Austin C., Avila-Alvarez A., Babak S., Bacon P., Bader M. K. M., Bae S., Baker P. T., Baldaccini F., Ballardin G., Ballmer S. W., Banagiri S., Barayoga J. C., Barclay S. E., Barish B. C., Barker D., Barkett K., Barone F., Barr B., Barsotti L., Barsuglia M., Barta D., Barthelmy S. D., Bartlett J., Bartos I., Bassiri R., Basti A., Batch J. C., Bawaj M., Bayley J. C., Bazzan M., Becsy B., Beer C., Bejger M., Belahcene I., Bell A. S., Berger B. K., Bergmann G., Bero J. J., Berry C. P. L., Bersanetti D., Bertolini A., Betzwieser J., Bhagwat S., Bhandare R., Bilenko I. A., Billingsley G., Billman C. R., Birch J., Birney R., Birnholtz O., Biscans S., Biscoveanu S., Bisht A., Bitossi M., Biwer C., Bizouard M. A., Blackburn J. K., Blackman J., Blair C. D., Blair D. G., Blair R. M., Bloemen S., Bock O., Bode N., Boer M., Bogaert G., Bohe A., Bondu F., Bonilla E., Bonnand R., Boom B. A., Bork R., Boschi V., Bose S., Bossie K., Bouffanais Y., Bozzi A., Bradaschia C., Brady P. R., Branchesi M., Brau J. E., Briant T., Brillet A., Brinkmann M., Brisson V., Brockill P., Broida J. E., Brooks A. F., Brown D. A., Brown D. D., Brunett S., Buchanan C. C., Buikema A., Bulik T., Bulten H. J., Buonanno A., Buskulic D., Buy C., Byer R. L., Cabero M., Cadonati L., Cagnoli G., Cahillane C., Bustillo J. Caldern, Callister T. A., Calloni E., Camp J. B., Canepa M., Canizares P., Cannon K. C., Cao H., Cao J., Capano C. D., Capocasa E., Carbognani F., Caride S., Carney M. F., Diaz J. Casanueva, Casentini C., Caudill S., Cavagli M., Cavalier F., Cavalieri R., Cella G., Cepeda C. B., Cerd-Durn P., Cerretani G., Cesarini E., Chamberlin S. J., Chan M., Chao S., Charlton P., Chase E., Chassande-Mottin E., Chatterjee D., Chatziioannou K., Cheeseboro B. D., Chen H. Y., Chen X., Chen Y., Cheng H. -P., Chia H., Chincarini A., Chiummo A., Chmiel T., Cho H. S., Cho M., Chow J. H., Christensen N., Chu Q., Chua A. J. K., Chua S., Chung A. K. W., Chung S., Ciani G., Ciolfi R., Cirelli C. E., Cirone A., Clara F., Clark J. A., Clearwater P., Cleva F., Cocchieri C., Coccia E., Cohadon P. -F., Cohen D., Colla A., Collette C. G., Cominsky L. R., Constancio M., Conti L., Cooper S. J., Corban P., Corbitt T. R., Cordero-Carrion I., Corley K. R., Cornish N., Corsi A., Cortese S., Costa C. A., Coughlin M. W., Coughlin S. B., Coulon J. -P., Countryman S. T., Couvares P., Covas P. B., Cowan E. E., Coward D. M., Cowart M. J., Coyne D. C., Coyne R., Creighton J. D. E., Creighton T. D., Cripe J., Crowder S. G., Cullen T. J., Cumming A., Cunningham L., Cuoco E., Dal Canton T., Dlya G., Danilishin S. L., D'Antonio S., Danzmann K., Dasgupta A., Costa C. F. Da Silva, Dattilo V., Dave I., Davier M., Davis D., Daw E. J., Day B., De S., Debra D., Degallaix J., De laurentis M., Deleglise S., Del Pozzo W., Demos N., Denker T., Dent T., De Pietri R., Dergachev V., De Rosa R., DeRosa R. T., De Rossi C., DeSalvo R., De Varona O., Devenson J., Dhurandhar S., Diaz M. C., Di Fiore L., Di Giovanni M., Di Girolamo T., Di Lieto A., Di Pace S., Di Palma I., Di Renzo F., Doctor Z., Dolique V., Donovan F., Dooley K. L., Doravari S., Dorrington I., Douglas R., Alvarez M. Dovale, Downes T. P., Drago M., Dreissigacker C., Driggers J. C., Du Z., Ducrot M., Dupej P., Dwyer S. E., Edo T. B., Edwards M. C., Effler A., Eggenstein H. -B., Ehrens P., Eichholz J., Eikenberry S. S., Eisenstein R. A., Essick R. C., Estevez D., Etienne Z. B., Etzel T., Evans M., Evans T. M., Factourovich M., Fafone V., Fair H., Fairhurst S., Fan X., Farinon S., Farr B., Farr W. M., Fauchon-Jones E. J., Favata M., Fays M., Fee C., Fehrmann H., Feicht J., Fejer M. M., Fernandez-Galiana A., Ferrante I., Ferreira E. C., Ferrini F., Fidecaro F., Finstad D., Fiori I., Fiorucci D., Fishbach M., Fisher R. P., Fitz-Axen M., Flaminio R., Fletcher M., Fong H., Font J. A., Forsyth P. W. F., Forsyth S. S., Fournier J. -D., Frasca S., Frasconi F., Frei Z., Freise A., Frey R., Frey V., Fries E. M., Fritschel P., Frolov V. V., Fulda P., Fyffe M., Gabbard H., Gadre B. U., Gaebel S. M., Gair J. R., Gammaitoni L., Ganija M. R., Gaonkar S. G., Garcia-Quiros C., Garufi F., Gateley B., Gaudio S., Gaur G., Gayathri V., Gehrels N., Gemme G., Genin E., Gennai A., George D., George J., Gergely L., Germain V., Ghonge S., Ghosh Abhirup, Ghosh Archisman, Ghosh S., Giaime J. A., Giardina K. D., Giazotto A., Gill K., Glover L., Goetz E., Goetz R., Gomes S., Goncharov B., Gonzlez G., Castro J. M. Gonzalez, Gopakumar A., Gorodetsky M. L., Gossan S. E., Gosselin M., Gouaty R., Grado A., Graef C., Granata M., Grant A., Gras S., Gray C., Greco G., Green A. C., Gretarsson E. M., Griswold B., Groot P., Grote H., Grunewald S., Gruning P., Guidi G. M., Guo X., Gupta A., Gupta M. K., Gushwa K. E., Gustafson E. K., Gustafson R., Halim O., Hall B. R., Hall E. D., Hamilton E. Z., Hammond G., Haney M., Hanke M. M., Hanks J., Hanna C., Hannam M. D., Hannuksela O. A., Hanson J., Hardwick T., Harms J., Harry G. M., Harry I. W., Hart M. J., Haster C. -J., Haughian K., Healy J., Heidmann A., Heintze M. C., Heitmann H., Hello P., Hemming G., Hendry M., Heng I. S., Hennig J., Heptonstall A. W., Heurs M., Hild S., Hinderer T., Hoak D., Hofman D., Holt K., Holz D. E., Hopkins P., Horst C., Hough J., Houston E. A., Howell E. J., Hreibi A., Hu Y. M., Huerta E. A., Huet D., Hughey B., Husa S., Huttner S. H., Huynh-Dinh T., Indik N., Inta R., Intini G., Isa H. N., Isac J. -M., Isi M., Iyer B. R., Izumi K., Jacqmin T., Jani K., Jaranowski P., Jawahar S., Jimenez-Forteza F., Johnson W. W., Jones D. I., Jones R., Jonker R. J. G., Ju L., Junker J., Kalaghatgi C. V., Kalogera V., Kamai B., Kandhasamy S., Kang G., Kanner J. B., Kapadia S. J., Karki S., Karvinen K. S., Kasprzack M., Katolik M., Katsavounidis E., Katzman W., Kaufer S., Kawabe K., Kefelian F., Keitel D., Kemball A. J., Kennedy R., Kent C., Key J. S., Khalili F. Y., Khan I., Khan S., Khan Z., Khazanov E. A., Kijbunchoo N., Kim Chunglee, Kim J. C., Kim K., Kim W., Kim W. S., Kim Y. -M., Kimbrell S. J., King E. J., King P. J., Kinley-Hanlon M., Kirchhoff R., Kissel J. S., Kleybolte L., Klimenko S., Knowles T. D., Koch P., Koehlenbeck S. M., Koley S., Kondrashov V., Kontos A., Korobko M., Korth W. Z., Kowalska I., Kozak D. B., Krmer C., Kringel V., Krishnan B., Krlak A., Kuehn G., Kumar P., Kumar R., Kumar S., Kuo L., Kutynia A., Kwang S., Lackey B. D., Lai K. H., Landry M., Lang R. N., Lange J., Lantz B., Lanza R. K., Larson S. L., Lartaux-Vollard A., Lasky P. D., Laxen M., Lazzarini A., Lazzaro C., Leaci P., Leavey S., Lee C. H., Lee H. K., Lee H. M., Lee H. W., Lee K., Lehmann J., Lenon A., Leonardi M., Leroy N., Letendre N., Levin Y., Li T. G. F., Linker S. D., Littenberg T. B., Liu J., Lo R. K. L., Lockerbie N. A., London L. T., Lord J. E., Lorenzini M., Loriette V., Lormand M., Losurdo G., Lough J. D., Lousto C. O., Lovelace G., Lck H., Lumaca D., Lundgren A. P., Lynch R., Ma Y., Macas R., Macfoy S., Machenschalk B., MacInnis M., Macleod D. M., Hernandez I. Magaa, Magaa-Sandoval F., Zertuche L. Magaa, Magee R. M., Majorana E., Maksimovic I., Man N., Mandic V., Mangano V., Mansell G. L., Manske M., Mantovani M., Marchesoni F., Marion F., Mrka S., Mrka Z., Markakis C., Markosyan A. S., Markowitz A., Maros E., Marquina A., Marsh P., Martelli F., Martellini L., Martin I. W., Martin R. M., Martynov D. V., Mason K., Massera E., Masserot A., Massinger T. J., Masso-Reid M., Mastrogiovanni S., Matas A., Matichard F., Matone L., Mavalvala N., Mazumder N., McCarthy R., McClelland D. E., McCormick S., McCuller L., McGuire S. C., McIntyre G., McIver J., McManus D. J., McNeill L., Mcrae T., McWilliams S. T., Meacher D., Meadors G. D., Mehmet M., Meidam J., Mejuto-Villa E., Melatos A., Mendell G., Mercer R. A., Merilh E. L., Merzougui M., Meshkov S., Messenger C., Messick C., Metzdorff R., Meyers P. M., Miao H., Michel C., Middleton H., Mikhailov E. E., Milano L., Mueller A. L., Mueller B. B., Miller J., Millhouse M., Milovich-Goff M. C., Minazzoli O., Minenkov Y., Ming J., Mishra C., Mitra S., Mitrofanov V. P., Mitselmakher G., Mittleman R., Moffa D., Moggi A., Mogushi K., Mohan M., Mohapatra S. R. P., Montani M., Moore C. J., Moraru D., Moreno G., Morriss S. R., Mours B., Mow-Lowry C. M., Mueller G., Muir A. W., Mukherjee Arunava, Mukherjee D., Mukherjee S., Mukund N., Mullavey A., Munch J., Muniz E. A., Muratore M., Murray P. G., Napier K., Nardecchia I., Naticchioni L., Nayak R. K., Neilson J., Nelemans G., Nelson T. J. N., Nery M., Neunzert A., Nevin L., Newport J. M., Newton G., Ng K. K. Y., Nguyen P., Nguyen T. T., Nichols D., Nielsen A. B., Nissanke S., Nitz A., Noack A., Nocera F., Nolting D., North C., Nuttall L. K., Oberling J., O'Dea G. D., Ogin G. H., Oh J. J., Oh S. H., Ohme F., Okada M. A., Oliver M., Oppermann P., Oram Richard J., O'Reilly B., Ormiston R., Ortega L. F., O'Shaughnessy R., Ossokine S., Ottaway D. J., Overmier H., Owen B. J., Pace A. E., Page J., Page M. A., Pai A., Pai S. A., Palamos J. R., Palashov O., Palomba C., Pal-Singh A., Pan Howard, Pan Huang-Wei, Pang B., Pang P. T. H., Pankow C., Pannarale F., Pant B. C., Paoletti F., Paoli A., Papa M. A., Parida A., Parker W., Pascucci D., Pasqualetti A., Passaquieti R., Passuello D., Patil M., Patricelli B., Pearlstone B. L., Pedraza M., Pedurand R., Pekowsky L., Pele A., Penn S., Perez C. J., Perreca A., Perri L. M., Pfeiffer H. P., Phelps M., Piccinni O. J., Pichot M., Piergiovanni F., Pierro V., Pillant G., Pinard L., Pinto I. M., Pirello M., Pitkin M., Poe M., Poggiani R., Popolizio P., Porter E. K., Post A., Powell J., Prasad J., Pratt J. W. W., Pratten G., Predoi V., Prestegard T., Price L. R., Prijatelj M., Principe M., Privitera S., Prodi G. A., Prokhorov L. G., Puncken O., Punturo M., Puppo P., Prrer M., Qi H., Quetschke V., Quintero E. A., Quitzow-James R., Raab F. J., Rabeling D. S., Radkins H., Raffai P., Raja S., Rajan C., Rajbhandari B., Rakhmanov M., Ramirez K. E., Ramos-Buades A., Rapagnani P., Raymond V., Razzano M., Read J., Regimbau T., Rei L., Reid S., Reitze D. H., Ren W., Reyes S. D., Ricci F., Ricker P. M., Rieger S., Riles K., Rizzo M., Robertson N. A., Robie R., Robinet F., Rocchi A., Rolland L., Rollins J. G., Roma V. J., Romano R., Romel C. L., Romie J. H., Rosinska D., Ross M. P., Rowan S., Rdiger A., Ruggi P., Rutins G., Ryan K., Sachdev S., Sadecki T., Sadeghian L., Sakellariadou M., Salconi L., Saleem M., Salemi F., Samajdar A., Sammut L., Sampson L. M., Sanchez E. J., Sanchez L. E., Sanchis-Gual N., Sandberg V., Sanders J. R., Sassolas B., Sathyaprakash B. S., Saulson P. R., Sauter O., Savage R. L., Sawadsky A., Schale P., Scheel M., Scheuer J., Schmidt J., Schmidt P., Schnabel R., Schofield R. M. S., Schonbeck A., Schreiber E., Schuette D., Schulte B. W., Schutz B. F., Schwalbe S. G., Scott J., Scott S. M., Seidel E., Sellers D., Sengupta A. S., Sentenac D., Sequino V., Sergeev A., Shaddock D. A., Shaffer T. J., Shah A. A., Shahriar M. S., Shaner M. B., Shao L., Shapiro B., Shawhan P., Sheperd A., Shoemaker D. H., Shoemaker D. M., Siellez K., Siemens X., Sieniawska M., Sigg D., Silva A. D., Singer L. P., Singh A., Singhal A., Sintes A. M., Slagmolen B. J. J., Smith B., Smith J. R., Smith R. J. E., Somala S., Son E. J., Sonnenberg J. A., Sorazu B., Sorrentino F., Souradeep T., Spencer A. P., Srivastava A. K., Staats K., Staley A., Steinke M., Steinlechner J., Steinlechner S., Steinmeyer D., Stevenson S. P., Stone R., Stops D. J., Strain K. A., Stratta G., Strigin S. E., Strunk A., Sturani R., Stuver A. L., Summerscales T. Z., Sun L., Sunil S., Suresh J., Sutton P. J., Swinkels B. L., Szczepanczyk M. J., Tacca M., Tait S. C., Talbot C., Talukder D., Tanner D. B., Tpai M., Taracchini A., Tasson J. D., Taylor J. A., Taylor R., Tewari S. V., Theeg T., Thies F., Thomas E. G., Thomas M., Thomas P., Thorne K. A., Thorne K. S., Thrane E., Tiwari S., Tiwari V., Tokmakov K. V., Toland K., Tonelli M., Tornasi Z., Torres-Forn A., Torrie C. I., Toyr D., Travasso F., Traylor G., Trinastic J., Tringali M. C., Trozzo L., Tsang K. W., Tse M., Tso R., Tsukada L., Tsuna D., Tuyenbayev D., Ueno K., Ugolini D., Unnikrishnan C. S., Urban A. L., Usman S. A., Vahlbruch H., Vajente G., Valdes G., Van Bakel N., Van Beuzekom M., van den Brand J. F. J., van den Broeck C., Vander-Hyde D. C., van der Schaaf L., van Heijningen J. V., van Veggel A. A., Vardaro M., Varma V., Vass S., Vasuth M., Vecchio A., Vedovato G., Veitch J., Veitch P. J., Venkateswara K., Venugopalan G., Verkindt D., Vetro F., Vicere A., Viets A. D., Vinciguerra S., Vine D. J., Vinet J. Y., Vitale S., Vo T., Vocca H., Vorvick C., Vyatchanin S. P., Wade A. R., Wade L. E., Wade M., Walet R., Walker M., Wallace L., Walsh S., Wang G., Wang H., Wang J. Z., Wang W. H., Wang Y. F., Ward R. L., Warner J., Was M., Watchi J., Weaver B., Wei L. -W., Weinert M., Weinstein A. J., Weiss R., Wen L., Wessel E. K., Wessels P., Westerweck J., Westphal T., Wette K., Whelan J. T., Whitcomb S. E., Whiting B. F., Whittle C., Wilken D., Williams D., Williams R. D., Williamson A. R., Willis J. L., Willke B., Wimmer M. H., Winkler W., Wipf C. C., Wittel H., Woan G., Woehler J., Wofford J., Wong K. W. K., Worden J., Wright J. L., Wu D. S., Wysocki D. M., Xiao S., Yamamoto H., Yancey C. C., Yang L., Yap M. J., Yazback M., Yu Hang, Yu Haocun, Yvert M., Zadrozny A., Zanolin M., Zelenova T., Zendri J. -P., Zevin M., Zhang L., Zhang M., Zhang T., Zhang Y. -H., Zhao C., Zhou M., Zhou Z., Zhu S. J., Zhu X. J., Zimmerman A. B., Zucker M. E., Zweizig J., Wilson-Hodge C. A., Bissaldi E., Blackburn L., Briggs M. S., Burns E., Cleveland W. H., Connaughton V., Gibby M. H., Giles M. M., Goldstein A., Hamburg R., Jenke P., Hui C. M., Kippen R. M., Kocevski D., McBreen S., Meegan C. A., Paciesas W. S., Poolakkil S., Preece R. D., Racusin J., Roberts O. J., Stanbro M., Veres P., von Kienlin A., Savchenko V., Ferrigno C., Kuulkers E., Bazzano A., Bozzo E., Brandt S., Chenevez J., Courvoisier T. J. -L., Diehl R., Domingo A., Hanlon L., Jourdain E., Laurent P., Lebrun F., Lutovinov A., Martin-Carrillo A., Mereghetti S., Natalucci L., Rodi J., Roques J. -P., Sunyaev R., Ubertini P., Aartsen M. G., Ackermann M., Adams J., Aguilar J. A., Ahlers M., Ahrens M., Al Samarai I., Altmann D., Andeen K., Anderson T., Ansseau I., Anton G., Argelles C., Auffenberg J., Axani S., Bagherpour H., Bai X., Barron J. P., Barwick S. W., Baum V., Bay R., Beatty J. J., Tjus J. Becker, Bernardini E., Besson D. Z., Binder G., Bindig D., Blaufuss E., Blot S., Bohm C., Borner M., Bos F., Bose D., Boser S., Botner O., Bourbeau E., Bourbeau J., Bradascio F., Braun J., Brayeur L., Brenzke M., Bretz H. -P., Bron S., Brostean-Kaiser J., Burgman A., Carver T., Casey J., Casier M., Cheung E., Chirkin D., Christov A., Clark K., Classen L., Coenders S., Collin G. H., Conrad J. M., Cowen D. F., Cross R., Day M., De Andre J. P. A. M., De Clercq C., DeLaunay J. J., Dembinski H., De Ridder S., Desiati P., De Vries K. D., De Wasseige G., De With M., DeYoung T., Diaz-Velez J. C., Di Lorenzo V., Dujmovic H., Dumm J. P., Dunkman M., Dvorak E., Eberhardt B., Ehrhardt T., Eichmann B., Eller P., Evenson P. A., Fahey S., Fazely A. R., Felde J., Filimonov K., Finley C., Flis S., Franckowiak A., Friedman E., Fuchs T., Gaisser T. K., Gallagher J., Gerhardt L., Ghorbani K., Giang W., Glauch T., Glsenkamp T., Goldschmidt A., Gonzalez J. G., Grant D., Griffith Z., Haack C., Hallgren A., Halzen F., Hanson K., Hebecker D., Heereman D., Helbing K., Hellauer R., Hickford S., Hignight J., Hill G. C., Hoffman K. D., Hoffmann R., Hokanson-Fasig B., Hoshina K., Huang F., Huber M., Hultqvist K., Hnnefeld M., In S., Ishihara A., Jacobi E., Japaridze G. S., Jeong M., Jero K., Jones B. J. P., Kalaczynski P., Kang W., Kappes A., Karg T., Karle A., Keivani A., Kelley J. L., Kheirandish A., Kim J., Kim M., Kintscher T., Kiryluk J., Kittler T., Klein S. R., Kohnen G., Koirala R., Kolanoski H., Kopke L., Kopper C., Kopper S., Koschinsky J. P., Koskinen D. J., Kowalski M., Krings K., Kroll M., Krckl G., Kunnen J., Kunwar S., Kurahashi N., Kuwabara T., Kyriacou A., Labare M., Lanfranchi J. L., Larson M. J., Lauber F., Lesiak-Bzdak M., Leuermann M., Liu Q. R., Lu L., Lnemann J., Luszczak W., Madsen J., Maggi G., Mahn K. B. M., Mancina S., Maruyama R., Mase K., Maunu R., McNally F., Meagher K., Medici M., Meier M., Menne T., Merino G., Meures T., Miarecki S., Micallef J., Moment G., Montaruli T., Moore R. W., Moulai M., Nahnhauer R., Nakarmi P., Naumann U., Neer G., Niederhausen H., Nowicki S. C., Nygren D. R., Pollmann A. Obertacke, Olivas A., O'Murchadha A., Palczewski T., Pandya H., Pankova D. V., Peiffer P., Pepper J. A., Heros C. Perez De Los, Pieloth D., Pinat E., Price P. B., Przybylski G. T., Raab C., Rdel L., Rameez M., Rawlins K., Rea I. C., Reimann R., Relethford B., Relich M., Resconi E., Rhode W., Richman M., Robertson S., Rongen M., Rott C., Ruhe T., Ryckbosch D., Rysewyk D., Slzer T., Herrera S. E. Sanchez, Sandrock A., Sandroos J., Santander M., Sarkar S., Sarkar S., Satalecka K., Schlunder P., Schmidt T., Schneider A., Schoenen S., Schoneberg S., Schumacher L., Seckel D., Seunarine S., Soedingrekso J., Soldin D., Song M., Spiczak G. M., Spiering C., Stachurska J., Stamatikos M., Stanev T., Stasik A., Stettner J., Steuer A., Stezelberger T., Stokstad R. G., Stosl A., Strotjohann N. L., Stuttard T., Sullivan G. W., Sutherland M., Taboada I., Tatar J., Tenholt F., Ter-Antonyan S., Terliuk A., Tesic G., Tilav S., Toale P. A., Tobin M. N., Toscano S., Tosi D., Tselengidou M., Tung C. F., Turcati A., Turley C. F., Ty B., Unger E., Usner M., Vandenbroucke J., Van Driessche W., Van Eijndhoven N., Vanheule S., Van Santen J., Vehring M., Vogel E., Vraeghe M., Walck C., Wallace A., Wallraff M., Wandler F. D., Wandkowsky N., Waza A., Weaver C., Weiss M. J., Wendt C., Werthebach J., Whelan B. J., Wiebe K., Wiebusch C. H., Wille L., Williams D. R., Wills L., Wolf M., Wood T. R., Woolsey E., Woschnagg K., Xu D. L., Xu X. W., Xu Y., Yanez J. P., Yodh G., Yoshida S., Yuan T., Zoll M., Balasubramanian A., Mate S., Bhalerao V., Bhattacharya D., Vibhute A., Dewangan G. C., Rao A. R., Vadawale S. V., Svinkin D. S., Hurley K., Aptekar R. L., Frederiks D. D., Golenetskii S. V., Kozlova A. V., Lysenko A. L., Oleynik Ph. P., Tsvetkova A. E., Ulanov M. V., Cline T., Li T. P., Xiong S. L., Zhang S. N., Lu F. J., Song L. M., Cao X. L., Chang Z., Chen G., Chen L., Chen T. X., Chen Y., Chen Y. B., Chen Y. P., Cui W., Cui W. W., Deng J. K., Dong Y. W., Du Y. Y., Fu M. X., Gao G. H., Gao H., Gao M., Ge M. Y., Gu Y. D., Guan J., Guo C. C., Han D. W., Hu W., Huang Y., Huo J., Jia S. M., Jiang L. H., Jiang W. C., Jin J., Jin Y. J., Li B., Li C. K., Li G., Li M. S., Li W., Li X., Li X. B., Li X. F., Li Y. G., Li Z. J., Li Z. W., Liang X. H., Liao J. Y., Liu C. Z., Liu G. Q., Liu H. W., Liu S. Z., Liu X. J., Liu Y., Liu Y. N., Lu B., Lu X. F., Luo T., Ma X., Meng B., Nang Y., Nie J. Y., Ou G., Qu J. L., Sai N., Sun L., Tan Y., Tao L., Tao W. H., Tuo Y. L., Wang G. F., Wang H. Y., Wang J., Wang W. S., Wang Y. S., Wen X. Y., Wu B. B., Wu M., Xiao G. C., Xu H., Xu Y. P., Yan L. L., Yang J. W., Yang S., Yang Y. J., Zhang A. M., Zhang C. L., Zhang C. M., Zhang F., Zhang H. M., Zhang J., Zhang Q., Zhang S., Zhang T., Zhang W., Zhang W. C., Zhang W. Z., Zhang Y., Zhang Y., Zhang Y. F., Zhang Y. J., Zhang Z., Zhang Z. L., Zhao H. S., Zhao J. L., Zhao X. F., Zheng S. J., Zhu Y., Zhu Y. X., Zou C. L., Albert A., Andre M., Anghinolfi M., Ardid M., Aubert J. -J., Aublin J., Avgitas T., Baret B., Barrios-Marti J., Basa S., Belhorma B., Bertin V., Biagi S., Bormuth R., Bourret S., Bouwhuis M. C., Brnzas H., Bruijn R., Brunner J., Busto J., Capone A., Caramete L., Carr J., Celli S., El Moursli R. Cherkaoui, Chiarusi T., Circella M., Coelho J. A. B., Coleiro A., Coniglione R., Costantini H., Coyle P., Creusot A., Diaz A. F., Deschamps A., De Bonis G., Distefano C., Di Palma I., Domi A., Donzaud C., Dornic D., Drouhin D., Eberl T., El Bojaddaini I., El Khayati N., Elsasser D., Enzenhofer A., Ettahiri A., Fassi F., Felis I., Fusco L. A., Gay P., Giordano V., Glotin H., Gregoire T., Ruiz R. Gracia, Graf K., Hallmann S., Van Haren H., Heijboer A. J., Hello Y., Hernndez-Rey J. J., Hossl J., Hofestdt J., Hugon C., Illuminati G., James C. W., De Jong M., Jongen M., Kadler M., Kalekin O., Katz U., Kiessling D., Kouchner A., Kreter M., Kreykenbohm I., Kulikovskiy V., Lachaud C., Lahmann R., LefSvre D., Leonora E., Lotze M., Loucatos S., Marcelin M., Margiotta A., Marinelli A., Martinez-Mora J. A., Mele R., Melis K., Michael T., Migliozzi P., Moussa A., Navas S., Nezri E., Organokov M., Pavalas G. E., Pellegrino C., Perrina C., Piattelli P., Popa V., Pradier T., Quinn L., Racca C., Riccobene G., Snchez-Losa A., Saldaa M., Salvadori I., Samtleben D. F. E., Sanguineti M., Sapienza P., Sieger C., Spurio M., Stolarczyk Th., Taiuti M., Tayalati Y., Trovato A., Turpin D., Tonnis C., Vallage B., Van Elewyck V., Versari F., Vivolo D., Vizzoca A., Wilms J., Zornoza J. D., Zuniga J., Beardmore A. P., Breeveld A. A., Burrows D. N., Cenko S. B., Cusumano G., D'Al A., De Pasquale M., Emery S. W. K., Evans P. A., Giommi P., Gronwall C., Kennea J. A., Krimm H. A., Kuin N. P. M., Lien A., Marshall F. E., Melandri A., Nousek J. A., Oates S. R., Osborne J. P., Pagani C., Page K. L., Palmer D. M., Perri M., Siegel M. H., Sbarufatti B., Tagliaferri G., Tohuvavohu A., Tavani M., Verrecchia F., Bulgarelli A., Evangelista Y., Pacciani L., Feroci M., Pittori C., Giuliani A., Del Monte E., Donnarumma I., Argan A., Trois A., Ursi A., Cardillo M., Piano G., Longo F., Lucarelli F., Munar-Adrover P., Fuschino F., Labanti C., Marisaldi M., Minervini G., Fioretti V., Parmiggiani N., Gianotti F., Trifoglio M., Di Persio G., Antonelli L. A., Barbiellini G., Caraveo P., Cattaneo P. W., Costa E., Colafrancesco S., D'Amico F., Ferrari A., Morselli A., Paoletti F., Picozza P., Pilia M., Rappoldi A., Soffitta P., Vercellone S., Foley R. J., Coulter D. A., Kilpatrick C. D., Drout M. R., Piro A. L., Shappee B. J., Siebert M. R., Simon J. D., Ulloa N., Kasen D., Madore B. F., Murguia-Berthier A., Pan Y. -C., Prochaska J. X., Ramirez-Ruiz E., Rest A., Rojas-Bravo C., Berger E., Soares-Santos M., Annis J., Alexander K. D., Allam S., Balbinot E., Blanchard P., Brout D., Butler R. E., Chornock R., Cook E. R., Cowperthwaite P., Diehl H. T., Drlica-Wagner A., Drout M. R., Durret F., Eftekhari T., Finley D. A., Fong W., Frieman J. A., Fryer C. L., Garcia-Bellido J., Gruendl R. A., Hartley W., Herner K., Kessler R., Lin H., Lopes P. A. A., Lourenco A. C. C., Margutti R., Marshall J. L., Matheson T., Medina G. E., Metzger B. D., Muoz R. R., Muir J., Nicholl M., Nugent P., Palmese A., Paz-Chinchn F., Quataert E., Sako M., Sauseda M., Schlegel D. J., Scolnic D., Secco L. F., Smith N., Sobreira F., Villar V. A., Vivas A. K., Wester W., Williams P. K. G., Yanny B., Zenteno A., Zhang Y., Abbott T. M. C., Banerji M., Bechtol K., Benoit-Levy A., Bertin E., Brooks D., Buckley-Geer E., Burke D. L., Capozzi D., Rosell A. Carnero, Kind M. Carrasco, Castander F. J., Crocce M., Cunha C. E., D'Andrea C. B., Da Costa L. N., Davis C., Depoy D. L., Desai S., Dietrich J. P., Eifler T. F., Fernandez E., Flaugher B., Fosalba P., Gaztanaga E., Gerdes D. W., Giannantonio T., Goldstein D. A., Gruen D., Gschwend J., Gutierrez G., Honscheid K., James D. J., Jeltema T., Johnson M. W. G., Johnson M. D., Kent S., Krause E., Kron R., Kuehn K., Lahav O., Lima M., Maia M. A. G., March M., Martini P., McMahon R. G., Menanteau F., Miller C. J., Miquel R., Mohr J. J., Nichol R. C., Ogando R. L. C., Plazas A. A., Romer A. K., Roodman A., Rykoff E. S., Sanchez E., Scarpine V., Schindler R., Schubnell M., Sevilla-Noarbe I., Sheldon E., Smith M., Smith R. C., Stebbins A., Suchyta E., Swanson M. E. C., Tarle G., Thomas R. C., Troxel M. A., Tucker D. L., Vikram V., Walker A. R., Wechsler R. H., Weller J., Carlin J. L., Gill M. S. S., Li T. S., Marriner J., Neilsen E., Haislip J. B., Kouprianov V. V., Reichart D. E., Sand D. J., Tartaglia L., Valenti S., Yang S., Benetti S., Brocato E., Campana S., Cappellaro E., Covino S., D'Avanzo P., D'Elia V., Getman F., Ghirlanda G., Ghisellini G., Limatola L., Nicastro L., Palazzi E., Pian E., Piranomonte S., Possenti A., Rossi A., Salafia O. S., Tomasella L., Amati L., Antonelli L. A., Bernardini M. G., Bufano F., Capaccioli M., Casella P., Dadina M., De Cesare G., Di Paola A., Giuffrida G., Giunta A., Israel G. L., Lisi M., Maiorano E., Mapelli M., Masetti N., Pescalli A., Pulone L., Salvaterra R., Schipani P., Spera M., Stamerra A., Stella L., Testa V., Turatto M., Vergani D., Aresu G., Bachetti M., Buffa F., Burgay M., Buttu M., Caria T., Carretti E., Casasola V., Castangia P., Carboni G., Casu S., Concu R., Corongiu A., Deiana G. L., Egron E., Fara A., Gaudiomonte F., Gusai V., Ladu A., Loru S., Leurini S., Marongiu L., Melis A., Melis G., Migoni Carlo, Milia Sabrina, Navarrini Alessandro, Orlati A., Ortu P., Palmas S., Pellizzoni A., Perrodin D., Pisanu T., Poppi S., Righini S., Saba A., Serra G., Serrau M., Stagni M., Surcis G., Vacca V., Vargiu G. P., Hunt L. K., Jin Z. P., Klose S., Kouveliotou C., Mazzali P. A., Moller P., Nava L., Piran T., Selsing J., Vergani S. D., Wiersema K., Toma K., Higgins A. B., Mundell C. G., Alighieri S. Di Serego, Gtz D., Gao W., Gomboc A., Kaper L., Kobayashi S., Kopac D., Mao J., Starling R. L. C., Steele I., Van der Horst A. J., Acero F., Atwood W. B., Baldini L., Barbiellini G., Bastieri D., Berenji B., Bellazzini R., Bissaldi E., Blandford R. D., Bloom E. D., Bonino R., Bottacini E., Bregeon J., Buehler R., Buson S., Cameron R. A., Caputo R., Caraveo P. A., Cavazzuti E., Chekhtman A., Cheung C. C., Chiang J., Ciprini S., Cohen-Tanugi J., Cominsky L. R., Costantin D., Cuoco A., D'Ammando F., De Palma F., Digel S. W., Di Lalla N., Di Mauro M., Di Venere L., Dubois R., Fegan S. J., Focke W. B., Franckowiak A., Fukazawa Y., Funk S., Fusco P., Gargano F., Gasparrini D., Giglietto N., Giordano F., Giroletti M., Glanzman T., Green D., Grondin M. -H., Guillemot L., Guiriec S., Harding A. K., Horan D., Jhannesson G., Kamae T., Kensei S., Kuss M., La Mura G., Latronico L., Lemoine-Goumard M., Longo F., Loparco F., Lovellette M. N., Lubrano P., Magill J. D., Maldera S., Manfreda A., Mazziotta M. N., McEnery J. E., Meyer M., Michelson P. F., Mirabal N., Monzani M. E., Morselli A., Moskalenko I. V., Negro M., Nuss E., Ojha R., Omodei N., Orienti M., Orlando E., Palatiello M., Paliya V. S., Paneque D., Pesce-Rollins M., Piron F., Porter T. A., Principe G., Rain S., Rando R., Razzano M., Razzaque S., Reimer A., Reimer O., Reposeur T., Rochester L. S., Parkinson P. M. Saz, Sgro C., Siskind E. J., Spada F., Spandre G., Suson D. J., Takahashi M., Tanaka Y., Thayer J. G., Thayer J. B., Thompson D. J., Tibaldo L., Torres D. F., Torresi E., Troja E., Venters T. M., Vianello G., Zaharijas G., Allison J., Bannister K. W., Dobie D., Kaplan D. L., Lenc E., Lynch C., Murphy T., Sadler E. M., Hotan A., James C. W., Oslowski S., Raja W., Shannon R. M., Whiting M., Arcavi I., Howell D. A., McCully C., Hosseinzadeh G., Hiramatsu D., Poznanski D., Barnes J., Zaltzman M., Vasylyev S., Maoz D., Cooke J., Bailes M., Wolf C., Deller A. T., Lidman C., Wang L., Gendre B., Andreoni I., Ackley K., Pritchard T. A., Bessell M. S., Chang S. -W., Moller A., Onken C. A., Scalzo R. A., Ridden-Harper R., Sharp R. G., Tucker B. E., Farrell T. J., Elmer E., Johnston S., Krishnan V. Venkatraman, Keane E. F., Green J. A., Jameson A., Hu L., Ma B., Sun T., Wu X., Wang X., Shang Z., Hu Y., Ashley M. C. B., Yuan X., Li X., Tao C., Zhu Z., Zhang H., Suntzeff N. B., Zhou J., Yang J., Orange B., Morris D., Cucchiara A., Giblin T., Klotz A., Staff J., Thierry P., Schmidt B. P., Tanvir N. R., Levan A. J., Cano Z., De Ugarte-Postigo A., Evans P., Gonzalez-Fernandez C., Greiner J., Hjorth J., Irwin M., Kruhler T., Mandel I., Milvang-Jensen B., O'Brien P., Rol E., Rosetti S., Rosswog S., Rowlinson A., Steeghs D. T. H., Thene C. C., Ulaczyk K., Watson D., Bruun S. H., Cutter R., Jaimes R. Figuera, Fujii Y. I., Fruchter A. S., Gompertz B., Jakobsson P., Hodosan G., Jergensen U. G., Kangas T., Kann D. A., Rabus M., Schroder S. L., Stanway E. R., Wijers R. A. M. J., Lipunov V. M., Gorbovskoy E. S., Kornilov V. G., Tyurina N. V., Balanutsa P. V., Kuznetsov A. S., Vlasenko D. M., Podesta R. C., Lopez C., Podesta F., Levato H. O., Saffe C., Mallamaci C. C., Budnev N. M., Gress O. A., Kuvshinov D. A., Gorbunov I. A., Vladimirov V. V., Zimnukhov D. S., Gabovich A. V., Yurkov V. V., Sergienko Yu. P., Rebolo R., Serra-Ricart M., Tlatov A. G., Ishmuhametova Yu. V., Abe F., Aoki K., Aoki W., Asakura Y., Baar S., Barway S., Bond I. A., Doi M., Finet F., Fujiyoshi T., Furusawa H., Honda S., Itoh R., Kanda N., Kawabata K. S., Kawabata M., Kim J. H., Koshida S., Kuroda D., Lee C. -H., Liu W., Matsubayashi K., Miyazaki S., Morihana K., Morokuma T., Motohara K., Murata K. L., Nagai H., Nagashima H., Nagayama T., Nakaoka T., Nakata F., Ohsawa R., Ohshima T., Ohta K., Okita H., Saito T., Saito Y., Sako S., Sekiguchi Y., Sumi T., Tajitsu A., Takahashi J., Takayama M., Tamura Y., Tanaka I., Tanaka M., Terai T., Tominaga N., Tristram P. J., Uemura M., Utsumi Y., Yamaguchi M. S., Yasuda N., Yoshida M., Zenko T., Adams S. M., Allison J. R., Anupama G. C., Bally J., Barway S., Bellm E., Blagorodnova N., Cannella C., Chandra P., Chatterjee D., Clarke T. E., Cobb B. E., Cook D. O., Copperwheat C., De K., Emery S. W. K., Evans P. A., Feindt U., Foster K., Fox O. D., Frail D. A., Fremling C., Frohmaier C., Garcia J. A., Ghosh S., Giacintucci S., Goobar A., Gottlieb O., Grefenstette B. W., Hallinan G., Harrison F., Heida M., Helou G., Ho A. Y. Q., Horesh A., Hotokezaka K., Ip W. -H., Itoh R., Jacobs Bob, Jencson J. E., Kasen D., Kasliwal M. M., Kassim N. E., Kim H., Kiran B. S., Kuin N. P. M., Kulkarni S. R., Kupfer T., Lau R. M., Madsen K., Mazzali P. A., Miller A. A., Miyasaka H., Mooley K., Myers S. T., Nakar E., Ngeow C. -C., Nugent P., Ofek E. O., Palliyaguru N., Pavana M., Perley D. A., Peters W. M., Pike S., Piran T., Qi H., Quimby R. M., Rana J., Rosswog S., Rusu F., Sadler E. M., Van Sistine A., Sollerman J., Xu Y., Yan L., Yatsu Y., Yu P. -C., Zhang C., Zhao W., Chambers K. C., Huber M. E., Schultz A. S. B., Bulger J., Flewelling H., Magnier E. A., Lowe T. B., Wainscoat R. J., Waters C., Willman M., Ebisawa K., Hanyu C., Harita S., Hashimoto T., Hidaka K., Hori T., Ishikawa M., Isobe N., Iwakiri W., Kawai H., Kawai N., Kawamuro T., Kawase T., Kitaoka Y., Makishima K., Matsuoka M., Mihara T., Morita T., Morita K., Nakahira S., Nakajima M., Nakamura Y., Negoro H., Oda S., Sakamaki A., Sasaki R., Serino M., Shidatsu M., Shimomukai R., Sugawara Y., Sugita S., Sugizaki M., Tachibana Y., Takao Y., Tanimoto A., Tomida H., Tsuboi Y., Tsunemi H., Ueda Y., Ueno S., Yamada S., Yamaoka K., Yamauchi M., Yatabe F., Yoneyama T., Yoshii T., Coward D. M., Crisp H., Macpherson D., Andreoni I., Laugier R., Noysena K., Klotz A., Gendre B., Thierry P., Turpin D., Im M., Choi C., Kim J., Yoon Y., Lim G., Lee S. -K., Lee C. -U., Kim S. -L., Ko S. -W., Joe J., Kwon M. -K., Kim P. -J., Lim S. -K., Choi J. -S., Fynbo J. P. U., Malesani D., Xu D., Smartt S. J., Jerkstrand A., Kankare E., Sim S. A., Fraser M., Inserra C., Maguire K., Leloudas G., Magee M., Shingles L. J., Smith K. W., Young D. R., Kotak R., Gal-Yam A., Lyman J. D., Homan D. S., Agliozzo C., Anderson J. P., Angus C. R., Ashall C., Barbarino C., Bauer F. E., Berton M., Botticella M. T., Bulla M., Cannizzaro G., Cartier R., Cikota A., Clark P., De Cia A., Della Valle M., Dennefeld M., Dessart L., Dimitriadis G., Elias-Rosa N., Firth R. E., Flors A., Frohmaier C., Galbany L., Gonzlez-Gaitn S., Gromadzki M., Gutierrez C. P., Hamanowicz A., Harmanen J., Heintz K. E., Hernandez M. -S., Hodgkin S. T., Hook I. M., Izzo L., James P. A., Jonker P. G., Kerzendorf W. E., Kostrzewa-Rutkowska Z., Kromer M., Kuncarayakti H., Lawrence A., Manulis I., Mattila S., McBrien O., Mller A., Nordin J., O'Neill D., Onori F., Palmerio J. T., Pastorello A., Patat F., Pignata G., Podsiadlowski P., Razza A., Reynolds T., Roy R., Ruiter A. J., Rybicki K. A., Salmon L., Pumo M. L., Prentice S. J., Seitenzahl I. R., Smith M., Sollerman J., Sullivan M., Szegedi H., Taddia F., Taubenberger S., Terreran G., Van Soelen B., Vos J., Walton N. A., Wright D. E., Wyrzykowski L., Yaron O., Chen T. -W., Krhler T., Schady P., Wiseman P., Greiner J., Rau A., Schweyer T., Klose S., Guelbenzu A. Nicuesa, Palliyaguru N. T., Shara M. M., Williams T., Vaisanen P., Potter S. B., Colmenero E. Romero, Crawford S., Buckley D. A. H., Mao J., Diaz M. C., Macri L. M., Lambas D. Garcia, de Oliveira C. Mendes, Castellon J. L. Nilo, Ribeiro T., Sanchez B., Schoenell W., Abramo L. R., Akras S., Alcaniz J. S., Artola R., Beroiz M., Bonoli S., Cabral J., Camuccio R., Chavushyan V., Coelho P., Colazo C., Costa-Duarte M. V., Larenas H. Cuevas, Romero M. Dominguez, Dultzin D., Fernandez D., Garcia J., Girardini C., Goncalves D. R., Goncalves T. S., Gurovich S., Jimenez-Teja Y., Kanaan A., Lares M., de Oliveira R. Lopes, Lopez-Cruz O., Melia R., Molino A., Padilla N., Penuela T., Placco V. M., Quinones C., Rivera A. Ramirez, Renzi V., Riguccini L., Rios-Lopez E., Rodriguez H., Sampedro L., Schneiter M., Sodre L., Starck M., Torres-Flores S., Tornatore M., Zadrozny A., Castro-Tirado A. J., Tello J. C., Hu Y. -D., Zhang B. -B., Cunniffe R., Castellon A., Hiriart D., Caballero-Garcia M. D., Jelinek M., Kubanek P., Del Pulgar C. Perez, Park I. H., Jeong S., Ceron J. M. Castro, Pandey S. B., Yock P. C., Querel R., Fan Y., Wang C., Beardsley A., Brown I. S., Crosse B., Emrich D., Franzen T., Gaensler B. M., Horsley L., Johnston-Hollitt M., Kenney D., Morales M. F., Pallot D., Sokolowski M., Steele K., Tingay S. J., Trott C. M., Walker M., Wayth R., Williams A., Wu C., Yoshida A., Sakamoto T., Kawakubo Y., Yamaoka K., Takahashi I., Asaoka Y., Ozawa S., Torii S., Shimizu Y., Tamura T., Ishizaki W., Cherry M. L., Ricciarini S., Penacchioni A. V., Marrocchesi P. S., Pozanenko A. S., Volnova A. A., Mazaeva E. D., Minaev P. Yu., Krugov M. A., Kusakin A. V., Reva I. V., Moskvitin A. S., Rumyantsev V. V., Inasaridze R., Klunko E. V., Tungalag N., Schmalz S. E., Burhonov O., Abdalla H., Abramowski A., Aharonian F., Benkhali F. Ait, Angner E. O., Arakawa M., Arrieta M., Aubert P., Backes M., Balzer A., Barnard M., Becherini Y., Tjus J. Becker, Berge D., Bernhard S., Bernrhr K., Blackwell R., Bottcher M., Boisson C., Bolmont J., Bonnefoy S., Bordas P., Bregeon J., Brun F., Brun P., Bryan M., Bchele M., Bulik T., Capasso M., Caroff S., Carosi A., Casanova S., Cerruti M., Chakraborty N., Chaves R. C. G., Chen A., Chevalier J., Colafrancesco S., Condon B., Conrad J., Davids I. D., Decock J., Deil C., Devin J., Dewilt P., Dirson L., Djannati-Atao A., Donath A., Drury L. O'C., Dutson K., Dyks J., Edwards T., Egberts K., Emery G., Ernenwein J. -P., Eschbach S., Farnier C., Fegan S., Fernandes M. V., Fiasson A., Fontaine G., Funk S., Fssling M., Gabici S., Gallant Y. A., Garrigoux T., Gate F., Giavitto G., Giebels B., Glawion D., Glicenstein J. F., Gottschall D., Grondin M. -H., Hahn J., Haupt M., Hawkes J., Heinzelmann G., Henri G., Hermann G., Hinton J. A., Hofmann W., Hoischen C., Holch T. L., Holler M., Horns D., Ivascenko A., Iwasaki H., Jacholkowska A., Jamrozy M., Jankowsky D., Jankowsky F., Jingo M., Jouvin L., Jung-Richardt I., Kastendieck M. A., Katarzynski K., Katsuragawa M., Khangulyan D., Khelifi B., King J., Klepser S., Klochkov D., Kluzniak W., Komin Nu., Kosack K., Krakau S., Kraus M., Krger P. P., Laffon H., Lamanna G., Lau J., Lees J. -P., Lefaucheur J., Lemiere A., Lemoine-Goumard M., Lenain J. -P., Leser E., Lohse T., Lorentz M., Liu R., Lypova I., Malyshev D., Marandon V., Marcowith A., Mariaud C., Marx R., Maurin G., Maxted N., Mayer M., Meintjes P. J., Meyer M., Mitchell A. M. W., Moderski R., Mohamed M., Mohrmann L., Mor K., Moulin E., Murach T., Nakashima S., De Naurois M., Ndiyavala H., Niederwanger F., Niemiec J., Oakes L., O'Brien P., Odaka H., Ohm S., Ostrowski M., Oya I., Padovani M., Panter M., Parsons R. D., Pekeur N. W., Pelletier G., Perennes C., Petrucci P. -O., Peyaud B., Piel Q., Pita S., Poireau V., Poon H., Prokhorov D., Prokoph H., Phlhofer G., Punch M., Quirrenbach A., Raab S., Rauth R., Reimer A., Reimer O., Renaud M., Reyes R. De Los, Rieger F., Rinchiuso L., Romoli C., Rowell G., Rudak B., Rulten C. B., Sahakian V., Saito S., Sanchez D. A., Santangelo A., Sasaki M., Schlickeiser R., Schssler F., Schulz A., Schwanke U., Schwemmer S., Seglar-Arroyo M., Settimo M., Seyffert A. S., Shafi N., Shilon I., Shiningayamwe K., Simoni R., Sol H., Spanier F., Spir-Jacob M., Stawarz L., Steenkamp R., Stegmann C., Steppa C., Sushch I., Takahashi T., Tavernet J. -P., Tavernier T., Taylor A. M., Terrier R., Tibaldo L., Tiziani D., Tluczykont M., Trichard C., Tsirou M., Tsuji N., Tuffs R., Uchiyama Y., Van der Walt D. J., Van Eldik C., Van Rensburg C., Van Soelen B., Vasileiadis G., Veh J., Venter C., Viana A., Vincent P., Vink J., Voisin F., Volk H. J., Vuillaume T., Wadiasingh Z., Wagner S. J., Wagner P., Wagner R. M., White R., Wierzcholska A., Willmann P., WRnlein A., Wouters D., Yang R., Zaborov D., Zacharias M., Zanin R., Zdziarski A. A., Zech A., Zefi F., Ziegler A., Zorn J., Zywucka N., Fender R. P., Broderick J. W., Rowlinson A., Wijers R. A. M. J., Stewart A. J., Ter Veen S., Shulevski A., Kavic M., Simonetti J. H., League C., Tsai J., Obenberger K. S., Nathaniel K., Taylor G. B., Dowell J. D., Liebling S. L., Estes J. A., Lippert M., Sharma I., Vincent P., Farella B., Abeysekara A. U., Albert A., Alfaro R., Alvarez C., Arceo R., Arteaga-Velzquez J. C., Rojas D. Avila, Solares H. A. Ayala, Barber A. S., Gonzalez J. Becerra, Becerril A., Belmont-Moreno E., BenZvi S. Y., Berley D., Bernal A., Braun J., Brisbois C., Caballero-Mora K. S., Capistrn T., Carramiana A., Casanova S., Castillo M., Cotti U., Cotzomi J., De Leon S. Coutio, De Leon C., De la Fuente E., Hernandez R. Diaz, Dichiara S., Dingus B. L., DuVernois M. A., Diaz-Velez J. C., Ellsworth R. W., Engel K., Enriquez-Rivera O., Fiorino D. W., Fleischhack H., Fraija N., Garcia-Gonzlez J. A., Garfias F., Gerhardt M., Muoz A. Gonzolez, Gonzlez M. M., Goodman J. A., Hampel-Arias Z., Harding J. P., Hernandez S., Hernandez-Almada A., Hona B., Hntemeyer P., Iriarte A., Jardin-Blicq A., Joshi V., Kaufmann S., Kieda D., Lara A., Lauer R. J., Lennarz D., Vargas H. Leon, Linnemann J. T., Longinotti A. L., Raya G. Luis, Luna-Garcia R., Lopez-Coto R., Malone K., Marinelli S. S., Martinez O., Martinez-Castellanos I., Martinez-Castro J., Martinez-Huerta H., Matthews J. A., Miranda-Romagnoli P., Moreno E., Mostaf M., Nellen L., Newbold M., Nisa M. U., Noriega-Papaqui R., Pelayo R., Pretz J., Perez-Perez E. G., Ren Z., Rho C. D., Riviere C., Rosa-Gonzlez D., Rosenberg M., Ruiz-Velasco E., Salazar H., Greus F. Salesa, Sandoval A., Schneider M., Schoorlemmer H., Sinnis G., Smith A. J., Springer R. W., Surajbali P., Tibolla O., Tollefson K., Torres I., Ukwatta T. N., Weisgarber T., Westerhoff S., Wisher I. G., Wood J., Yapici T., Yodh G. B., Younk P. W., Zhou H., Alvarez J. D., Aab A., Abreu P., Aglietta M., Albuquerque I. F. M., Albury J. M., Allekotte I., Almela A., Castillo J. Alvarez, Alvarez-Muiz J., Anastasi G. A., Anchordoqui L., Andrada B., Andringa S., Aramo C., Arsene N., Asorey H., Assis P., Avila G., Badescu A. M., Balaceanu A., Barbato F., Luz R. J. Barreira, Becker K. H., Bellido J. A., Berat C., Bertaina M. E., Bertou X., Biermann P. L., Biteau J., Blaess S. G., Blanco A., Blazek J., Bleve C., Bohacova M., Bonifazi C., Borodai N., Botti A. M., Brack J., Brancus I., Bretz T., Bridgeman A., Briechle F. L., Buchholz P., Bueno A., Buitink S., Buscemi M., Caballero-Mora K. S., Caccianiga L., Cancio A., Canfora F., Caruso R., Castellina A., Catalani F., Cataldi G., Cazon L., Chavez A. G., Chinellato J. A., Chudoba J., Clay R. W., Cerutti A. C. Cobos, Colalillo R., Coleman A., Collica L., Coluccia M. R., Conceicao R., Consolati G., Contreras F., Cooper M. J., Coutu S., Covault C. E., Cronin J., D'Amico S., Daniel B., Dasso S., Daumiller K., Dawson B. R., Day J. A., De Almeida R. M., De Jong S. J., De Mauro G., Neto J. R. T. De Mello, De Mitri I., De Oliveira J., De Souza V., Debatin J., Deligny O., Castro M. L. Diaz, Diogo F., Dobrigkeit C., D'Olivo J. C., Dorosti Q., Dos Anjos R. C., Dova M. T., Dundovic A., Ebr J., Engel R., Erdmann M., Erfani M., Escobar C. O., Espadanal J., Etchegoyen A., Falcke H., Farmer J., Farrar G., Fauth A. C., Fazzini N., Feldbusch F., Fenu F., Fick B., Figueira J. M., Filipcic A., Freire M. M., Fujii T., Fuster A., Gaior R., Garcia B., Gate F., Gemmeke H., Gherghel-Lascu A., Ghia P. L., Giaccari U., Giammarchi M., Giller M., Glas D., Glaser C., Golup G., Berisso M. Gomez, Vitale P. F. Gomez, Gonzlez N., Gorgi A., Gottowik M., Grillo A. F., Grubb T. D., Guarino F., Guedes G. P., Halliday R., Hampel M. R., Hansen P., Harari D., Harrison T. A., Harvey V. M., Haungs A., Hebbeker T., Heck D., Heimann P., Herve A. E., Hill G. C., Hojvat C., Holt E. W., Homola P., Horandel J. R., Horvath P., Hrabovsky M., Huege T., Hulsman J., Insolia A., Isar P. G., Jandt I., Johnsen J. A., Josebachuili M., Jurysek J., Kaapa A., Kampert K. H., Keilhauer B., Kemmerich N., Kemp J., Kieckhafer R. M., Klages H. O., Kleifges M., Kleinfeller J., Krause R., Krohm N., Kuempel D., Mezek G. Kukec, Kunka N., Awad A. Kuotb, Lago B. L., LaHurd D., Lang R. G., Lauscher M., Legumina R., De Oliveira M. A. Leigui, Letessier-Selvon A., Lhenry-Yvon I., Link K., Lo Presti D., Lopes L., Lopez R., Casado A. Lopez, Lorek R., Luce Q., Lucero A., Malacari M., Mallamaci M., Mandat D., Mantsch P., Mariazzi A. G., Maris I. C., Marsella G., Martello D., Martinez H., Bravo O. Martinez, Meza J. J. Masias, Mathes H. J., Mathys S., Matthews J., Matthiae G., Mayotte E., Mazur P. O., Medina C., Medina-Tanco G., Melo D., Menshikov A., Merenda K. -D., Michal S., Micheletti M. I., Middendorf L., Miramonti L., Mitrica B., Mockler D., Mollerach S., Montanet F., Morello C., Morlino G., Mueller A. L., Mueller G., Mueller M. A., Mueller S., Mussa R., Naranjo I., Nguyen P. H., Niculescu-Oglinzanu M., Niechciol M., Niemietz L., Niggemann T., Nitz D., Nosek D., Novotny V., Nozka L., Nunez L. A., Oikonomou F., Olinto A., Palatka M., Pallotta J., Papenbreer P., Parente G., Parra A., Paul T., Pech M., Pedreira F., Kala J. P., Pea-Rodriguez J., Pereira L. A. S., Perlin M., Perrone L., Peters C., Petrera S., Phuntsok J., Pierog T., Pimenta M., Pirronello V., Platino M., Plum M., Poh J., Porowski C., Prado R. R., Privitera P., Prouza M., Quel E. J., Querchfeld S., Quinn S., Ramos-Pollan R., Rautenberg J., Ravignani D., Ridky J., Riehn F., Risse M., Ristori P., Rizi V., De Carvalho W. Rodrigues, Fernandez G. Rodriguez, Rojo J. Rodriguez, Roncoroni M. J., Roth M., Roulet E., Rovero A. C., Ruehl P., Saffi S. J., Saftoiu A., Salamida F., Salazar H., Saleh A., Salina G., Sanchez F., Sanchez-Lucas P., Santos E. M., Santos E., Sarazin F., Sarmento R., Sarmiento-Cano C., Sato R., Schauer M., Scherini V., Schieler H., Schimp M., Schmidt D., Scholten O., Schovnek P., Schroder F. G., Schroder S., Schulz A., Schumacher J., Sciutto S. J., Segreto A., Shadkam A., Shellard R. C., Sigl G., Silli G., Smida R., Snow G. R., Sommers P., Sonntag S., Soriano J. F., Squartini R., Stanca D., Stanic S., Stasielak J., Stassi P., Stolpovskiy M., Strafella F., Streich A., Suarez F., Suarez-Duran M., Sudholz T., Suomijarvi T., Supanitsky A. D., Supik J., Swain J., Szadkowski Z., Taboada A., Taborda O. A., Timmermans C., Peixoto C. J. Todero, Tomankova L., Tome B., Elipe G. Torralba, Travnicek P., Trini M., Tueros M., Ulrich R., Unger M., Urban M., Galicia J. F. Valdes, Valio I., Valore L., Van Aar G., Van Bodegom P., Van den Berg A. M., Van Vliet A., Varela E., Cardenas B. Vargas, Vazquez R. A., Veberic D., Ventura C., Quispe I. D. Vergara, Verzi V., Vicha J., Villaseor L., Vorobiov S., Wahlberg H., Wainberg O., Walz D., Watson A. A., Weber M., Weindl A., Wiedenski M., Wiencke L., Wilczynski H., Wirtz M., Wittkowski D., Wundheiler B., Yang L., Yushkov A., Zas E., Zavrtanik D., Zavrtanik M., Zepeda A., Zimmermann B., Ziolkowski M., Zong Z., Zuccarello F., Kim S., Schulze S., Bauer F. E., Corral-Santana J. M., De Gregorio-Monsalvo I., Gonzlez-Lopez J., Hartmann D. H., Ishwara-Chandra C. H., Martin S., Mehner A., Misra K., Michalowski M. J., Resmi L., Paragi Z., Agudo I., An T., Beswick R., Casadio C., Frey S., Jonker P., Kettenis M., Marcote B., Moldon J., Szomoru A., Langevelde H. J., Yang J., Cwiek A., Cwiok M., Czyrkowski H., Dabrowski R., Kasprowicz G., Mankiewicz L., Nawrocki K., Opiela R., Piotrowski L. W., Wrochna G., Zaremba M., Zarnecki A. F., Haggard D., Nynka M., Ruan J. J., Bland P. A., Booler T., Devillepoix H. A. R., De Gois J. S., Hancock P. J., Howie R. M., Paxman J., Sansom E. K., Towner M. C., Tonry J., Coughlin M., Stubbs C. W., Denneau L., Heinze A., Stalder B., Weiland H., Eatough R. 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  197. Suzaku Wide-band All-sky Monitor (WAM) observations of GRBs and SGRs Open Access

    Yamaoka Kazutaka, Ohno Masanori, Tashiro Makoto S., Hurley Kevin, Krimm Hans A., Lien Amy Y., Ohmori Norisuke, Sugita Satoshi, Urata Yuji, Yasuda Tetsuya, Enomoto Junichi, Fujinuma Takeshi, Fukazawa Yasushi, Hanabata Yoshitaka, Iwakiri Wataru, Kawano Takafumi, Kinoshita Ryuuji, Kokubun Motohide, Makishima Kazuo, Matsuoka Shunsuke, Nagayoshi Tsutomu, Nakagawa Yujin, Nakaya Souhei, Nakazawa Kazuhiro, Nishioka Yusuke, Sakamoto Takanori, Takahashi Tadayuki, Takeda Sawako, Terada Yukikatsu, Yabe Seiya, Yamauchi Makoto, Yoshida Hiraku

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 69 ( 3 )   2017.6

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    DOI: 10.1093/pasj/psx026

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  198. Energy calibration of CALET onboard the International Space Station Open Access

    Asaoka Y., Akaike Y., Komiya Y., Miyata R., Torii S., Adriani O., Asano K., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Javaid A., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kitamura H., Krawczynski H. S., Krizmanic J. F., Kuramata S., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Mizutani A. K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakagawa Y. E., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    ASTROPARTICLE PHYSICS   Vol. 91   page: 1-10   2017.5

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    DOI: 10.1016/j.astropartphys.2017.03.002

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  199. A hard-to-soft state transition of Aquila X-1 observed with Suzaku Open Access

    Ono Ko, Makishima Kazuo, Sakurai Soki, Zhang Zhongli, Yamaoka Kazutaka, Nakazawa Kazuhiro

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 69 ( 2 )   2017.4

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    DOI: 10.1093/pasj/psw126

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  200. The InterPlanetary Network Supplement to the Second Fermi GBM Catalog of Cosmic Gamma-Ray Bursts Open Access

    Hurley K., Aptekar R. L., Golenetskii S. V., Frederiks D. D., Svinkin D. S., Pal'shin V. D., Briggs M. S., Meegan C., Connaughton V., Goldsten J., Boynton W., Fellows C., Harshman K., Mitrofanov I. G., Golovin D. V., Kozyrev A. S., Litvak M. L., Sanin A. B., Rau A., von Kienlin A., Zhang X., Yamaoka K., Fukazawa Y., Ohno M., Tashiro M., Terada Y., Barthelmy S., Cline T., Gehrels N., Cummings J., Krimm H. A., Smith D. M., Del Monte E., Feroci M., Marisaldi M.

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 229 ( 2 )   2017.4

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    DOI: 10.3847/1538-4365/229/2/31

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  201. Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster Open Access

    Aharonian F. A., Akamatsu H., Akimoto F., Allen S. W., Angelini L., Arnaud K. A., Audard M., Awaki H., Axelsson M., Bamba A., Bautz M. W., Blandford R. D., Bulbul E., Brenneman L. W., Brown G. V., Cackett E. M., Chernyakova M., Chiao M. P., Coppi P., Costantini E., de Plaa J., den Herder J. -W., Done C., Dotani T., Ebisawa K., Eckart M. E., Enoto T., Ezoe Y., Fabian A. C., Ferrigno C., Foster A. R., Fujimoto R., Fukazawa Y., Furuzawa A., Galeazzi M., Gallo L. C., Gandhi P., Giustini M., Goldwurm A., Gu L., Guainazzi M., Haba Y., Hagino K., Hamaguchi K., Harrus I., Hatsukade I., Hayashi K., Hayashi T., Hayashida K., Hiraga J., Hornschemeier A. E., Hoshino A., Hughes J. P., Ichinohe Y., Iizuka R., Inoue H., Inoue S., Inoue Y., Ishibashi K., Ishida M., Ishikawa K., Ishisaki Y., Itoh M., Iwai M., Iyomoto N., Kaastra J. S., Kallman T., Kamae T., Kara E., Kataoka J., Katsuda S., Katsuta J., Kawaharada M., Kawai N., Kelley R. L., Khangulyan D., Kilbourne C. A., King A. L., Kitaguchi T., Kitamoto S., Kitayama T., Kohmura T., Kokubun M., Koyama S., Koyama K., Kretschmar P., Krimm H. A., Kubota A., Kunieda H., Laurent P., Lebrun F., Lee S. -H., Leutenegger M. A., Limousin O., Loewenstein M., Long K. S., Lumb D. H., Madejski G. M., Maeda Y., Maier D., Makishima K., Markevitch M., Matsumoto H., Matsushita K., McCammon D., McNamara B. R., Mehdipour M., Miller E. D., Miller J. M., Mineshige S., Mitsuda K., Mitsuishi I., Miyazawa T., Mizuno T., Mori H., Mori K., Moseley H., Mukai K., Murakami H., Murakami T., Mushotzky R. F., Nakagawa T., Nakajima H., Nakamori T., Nakano T., Nakashima S., Nakazawa K., Nobukawa K., Nobukawa M., Noda H., Nomachi M., O'Dell S. L., Odaka H., Ohashi T., Ohno M., Okajima T., Ota N., Ozaki M., Paerels F., Paltani S., Parmar A., Petre R., Pinto C., Pohl M., Porter F. S., Pottschmidt K., Ramsey B. D., Reynolds C. S., Russell H. R., Safi-Harb S., Saito S., Sakai K., Sameshima H., Sasaki T., Sato G., Sato K., Sato R., Sawada M., Schartel N., Serlemitsos P. J., Seta H., Shidatsu M., Simionescu A., Smith R. K., Soong Y., Stawarz L., Sugawara Y., Sugita S., Szymkowiak A. E., Tajima H., Takahashi H., Takahashi T., Takeda S., Takei Y., Tamagawa T., Tamura K., Tamura T., Tanaka T., Tanaka Yasuo, Tanaka Yasuyuki, Tashiro M., Tawara Y., Terada Y., Terashima Y., Tombesi F., Tomida H., Tsuboi Y., Tsujimoto M., Tsunemi H., Tsuru T., Uchida H., Uchiyama H., Uchiyama Y., Ueda S., Ueda Y., Ueno S., Uno S., Urry C. M., Ursino E., de Vries C. P., Watanabe S., Werner N., Wik D. R., Wilkins D. R., Williams B. J., Yamada S., Yamaguchi H., Yamaoka K., Yamasaki N. Y., Yamauchi M., Yamauchi S., Yaqoob T., Yatsu Y., Yonetoku D., Yoshida A., Zhuravleva I., Zoghbi A.

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 837 ( 1 )   2017.3

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    DOI: 10.3847/2041-8213/aa61fa

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  202. Solar neutron and gamma-ray monitor for a small satellite Open Access

    Yamaoka K.

    Proceedings of Science     2017

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    Solar neutrons can be probles for clarifying the ion acceleration mechansm in the Sun. However, there are only a few 10 detections up to present. The SEDA-AP Fiber detctor on the International Space Station (ISS) has been currently observing solar neutrons from space. In order to proceed solar-flare studies, we have developed very compact solar neutron and gamma-ray monitor for the micro satellite ChubuSat-2 utilizing the multi-pixel photon counter (MPPC) as a readout of scintillators. The realized size of the detector is 15 cm×17 cm×18.5 cm and its weight is 6.2 kg. We launched it on February 2016, but the detector has not been turned on yet due to a trouble in the satellite bus system. To upgrade the detector, we will use an ASIC instead of discrete electric parts for MPPC readout to reduce the electric power and space. In this paper, we will describe details of solar neutron detectors on the ChubuSat-2 and a future satellite.

    DOI: 10.22323/1.301.0239

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  203. CALET GBM observations of gamma-ray bursts and gravitational wave sources Open Access

    Yamaoka K.

    Proceedings of Science     2017

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    The CALET Gamma-ray Burst Monitor (CGBM) is secondary scientific instrument of the Calorimetric Electron Telescope (CALET) mission on the International Space Station (ISS). The primary instrument Calorimeter (CAL) is capable of detecting gamma-ray bursts (GRBs) in the GeV-TeV range, and the CGBM was attached to complement CAL gamma-ray observations in the keV-MeV range. The CGBM consists of 2 Hard X-ray Monitors (HXMs) and one Soft Gamma-ray Monitor (SGM), utilizing different scintillators LaBr<inf>3</inf>(Ce) and BGO respectively. The CGBM covers a broadband energy range of 7 keV - 20 MeV with a wide field of view (FOV). Since the launch on August 19, 2015, the CGBM has been sucessfully operated on the ISS for about 1.5 years, and detecting about 50 GRBs (roughly 20% short GRBs among them) per year as expected from pre-launch estimation. The CALET also concluded memolandum of understanding (MOU) with LIGO/Virgo collaboration, and we are searching for hard X-ray and gamma-ray counterparts for gravitational wave (GW) sources. In this paper, we will report on CGBM in-orbit operation, performance and observations of GRBs and GW sources.

    DOI: 10.22323/1.301.0614

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  204. GRS 1739-278 OBSERVED AT VERY LOW LUMINOSITY WITH XMM-NEWTON AND NuSTAR Open Access

    Furst F., Tomsick J. A., Yamaoka K., Dauser T., Miller J. M., Clavel M., Corbel S., Fabian A., Garcia J., Harrison F. A., Loh A., Kaaret P., Kalemci E., Migliari S., Miller-Jones J. C. A., Pottschmidt K., Rahoui F., Rodriguez J., Stern D., Stuhlinger M., Walton D. J., Wilms J.

    ASTROPHYSICAL JOURNAL   Vol. 832 ( 2 )   2016.12

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    DOI: 10.3847/0004-637X/832/2/115

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  205. MAXI observations of long X-ray bursts Open Access

    Serino Motoko, Iwakiri Wataru, Tamagawa Toru, Sakamoto Takanori, Nakahira Satoshi, Matsuoka Masaru, Yamaoka Kazutaka, Negoro Hitoshi

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 68 ( 6 )   2016.12

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    DOI: 10.1093/pasj/psw086

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  206. Large X-ray flares on stars detected with MAXI/GSC: A universal correlation between the duration of a flare and its X-ray luminosity Reviewed

    Yohko Tsuboi, Kyohei Yamazaki, Yasuharu Sugawara, Atsushi Kawagoe, Soichiro Kaneto, Ryo Iizuka, Takanori Matsumura, Satoshi Nakahira, Masaya Higa, Masaru Matsuoka, Mutsumi Sugizaki, Yoshihiro Ueda, Nobuyuki Kawai, Mikio Morii, Motoko Serino, Tatehiro Mihara, Hiroshi Tomida, Shiro Ueno, Hitoshi Negoro, Arata Daikyuji, Ken Ebisawa, Satoshi Eguchi, Kazuo Hiroi, Masaki Ishikawa, Naoki Isobe, Kazuyoshi Kawasaki, Masashi Kimura, Hiroki Kitayama, Mitsuhiro Kohama, Taro Kotani, Yujin E. Nakagawa, Motoki Nakajima, Hiroshi Ozawa, Megumi Shidatsu, Tetsuya Sootome, Kousuke Sugimori, Fumitoshi Suwa, Hiroshi Tsunemi, Ryuichi Usui, Takayuki Yamamoto, Kazutaka Yamaoka, Atsumasa Yoshida

    Publications of the Astronomical Society of Japan   Vol. 68 ( 5 )   2016.10

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    DOI: 10.1093/pasj/psw081

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  207. Development and verification of signal processing system of avalanche photo diode for the active shields onboard ASTRO-H

    Ohno M., Kawano T., Edahiro I., Shirakawa H., Ohashi N., Okada C., Habata S., Katsuta J., Tanaka Y., Takahashi H., Mizuno T., Fukazawa Y., Murakami H., Kobayashi S., Miyake K., Ono K., Kato Y., Furuta Y., Murota Y., Okuda K., Wada Y., Nakazawa K., Mimura T., Kataoka J., Ichinohe Y., Uchida Y., Katsuragawa M., Yoneda H., Sato G., Sato R., Kawaharada M., Harayama A., Odaka H., Hayashi K., Ohta M., Watanabe S., Kokubun M., Takahashi T., Takeda S., Kinoshita M., Yamaoka K., Tajima H., Yatsu Y., Uchiyama H., Saito S., Yuasa T., Makishima K.

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   Vol. 831   page: 410-414   2016.9

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    DOI: 10.1016/j.nima.2016.04.063

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  208. CALET UPPER LIMITS ON X-RAY AND GAMMA-RAY COUNTERPARTS OF GW151226 Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Brogi P., Buckley J. H., Cannady N., Castellini G., Checchia C., Cherry M. L., Collazuol G., Di Felice V., Ebisawa K., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Ishizaki W., Israel M. H., Javaid A., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kato C., Kawanaka N., Kawakubo Y., Kitamura H., Krawczynski H. S., Krizmanic J. F., Kuramata S., Lomtadze T., Maestro P., Marrocchesi P. S., Messineo A. M., Mitchell J. W., Miyake S., Mizutani K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakagawa Y. E., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Pacini L., Palma F., Papini P., Penacchioni A. V., Rauch B. F., Ricciarini S., Sakai K., Sakamoto T., Sasaki M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Stolzi F., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tsunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 829 ( 1 )   2016.9

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    DOI: 10.3847/2041-8205/829/1/L20

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  209. The quiescent intracluster medium in the core of the Perseus cluster Open Access

    Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steven W., Anabuki Naohisa, Angelini Lorella, Arnaud Keith, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Bamba Aya, Bautz Marshall, Blandford Roger, Brenneman Laura, Brown Gregory V., Bulbul Esra, Cackett Edward, Chernyakova Maria, Chiao Meng, Coppi Paolo, Costantini Elisa, de Plaa Jelle, den Herder Jan-Willem, Done Chris, Dotani Tadayasu, Ebisawa Ken, Eckart Megan, Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew C., Ferrigno Carlo, Foster Adam, Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi, Gandhi Poshak, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harrus Ilana, Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko, Hornschemeier Ann, Hoshino Akio, Hughes John, Iizuka Ryo, Inoue Hajime, Inoue Yoshiyuki, Ishibashi Kazunori, Ishida Manabu, Ishikawa Kumi, Ishisaki Yoshitaka, Itoh Masayuki, Iyomoto Naoko, Kaastra Jelle, Kallman Timothy, Kamae Tuneyoshi, Kara Erin, Kataoka Jun, Katsuda Satoru, Katsuta Junichiro, Kawaharada Madoka, Kawai Nobuyuki, Kelley Richard, Khangulyan Dmitry, Kilbourne Caroline, King Ashley, Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Koyama Shu, Koyama Katsuji, Kretschmar Peter, Krimm Hans, Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lebrun Francois, Lee Shiu-Hang, Leutenegger Maurice, Limousin Olivier, Loewenstein Michael, Long Knox S., Lumb David, Madejski Grzegorz, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McNamara Brian, Mehdipour Missagh, Miller Eric, Miller Jon, Mineshige Shin, Mitsuda Kazuhisa, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Hideyuki, Mori Koji, Moseley Harvey, Mukai Koji, Murakami Hiroshi, Murakami Toshio, Mushotzky Richard, Nagino Ryo, Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakano Toshio, Nakashima Shinya, Nakazawa Kazuhiro, Nobukawa Masayoshi, Noda Hirofumi, Nomachi Masaharu, O'Dell Steve, Odaka Hirokazu, Ohashi Takaya, Ohno Masanori, Okajima Takashi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Parmar Arvind, Petre Robert, Pinto Ciro, Pohl Martin, Porter F. Scott, Pottschmidt Katja, Ramsey Brian, Reynolds Christopher, Russell Helen, Safi-Harb Samar, Saito Shinya, Sakai Kazuhiro, Sameshima Hiroaki, Sato Goro, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter, Seta Hiromi, Shidatsu Megumi, Simionescu Aurora, Smith Randall, Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takahashi Tadayuki, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Keisuke, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki, Tashiro Makoto, Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Shutaro, Ueda Yoshihiro, Ueno Shiro, Uno Shin'ichiro, Urry Meg, Ursino Eugenio, De Vries Cor, Watanabe Shin, Werner Norbert, Wik Daniel, Wilkins Dan, Williams Brian, Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko Y., Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Yoshida Atsumasa, Yuasa Takayuki, Zhuravleva Irina, Zoghbi Abderahmen

    NATURE   Vol. 535 ( 7610 ) page: 117-+   2016.7

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    DOI: 10.1038/nature18627

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  210. Suzaku Wide-band All-sky Monitor measurements of duration distributions of gamma-ray bursts Open Access

    Ohmori Norisuke, Yamaoka Kazutaka, Ohno Masanori, Sugita Satoshi, Kinoshita Ryuuji, Nishioka Yusuke, Hurley Kevin, Hanabata Yoshitaka, Tashiro Makoto S., Enomoto Junichi, Fujinuma Takeshi, Fukazawa Yasushi, Iwakiri Wataru, Kawano Takafumi, Kokubun Motohide, Makishima Kazuo, Matsuoka Shunsuke, Nagayoshi Tsutomu, Nakagawa Yujin E., Nakaya Souhei, Nakazawa Kazuhiro, Takahashi Tadayuki, Takeda Sawako, Terada Yukikatsu, Urata Yuji, Yabe Seiya, Yasuda Tetsuya, Yamauchi Makoto

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 68   2016.6

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    DOI: 10.1093/pasj/psw009

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  211. The MAXI/GSC Nova-Alert System and results of its first 68 months Open Access

    Negoro Hitoshi, Kohama Mitsuhiro, Serino Motoko, Saito Hiroki, Takahashi Tomonori, Miyoshi Sho, Ozawa Hiroshi, Suwa Fumitoshi, Asada Masato, Fukushima Kosuke, Eguchi Satoshi, Kawai Nobuyuki, Kennea Jamie, Mihara Tatehiro, Morii Mikio, Nakahira Satoshi, Ogawa Yuji, Sugawara Aya, Tomida Hiroshi, Ueno Shiro, Ishikawa Masaki, Isobe Naoki, Kawamuro Taiki, Kimura Masashi, Masumitsu Takahiro, Nakagawa Yujin E., Nakajima Motoki, Sakamoto Takanori, Shidatsu Megumi, Sugizaki Mutsumi, Sugimoto Juri, Suzuki Kazuhiko, Takagi Toshihiro, Tanaka Kazuki, Tsuboi Yohko, Tsunemi Hiroshi, Ueda Yoshihiro, Yamaoka Kazutaka, Yamauchi Makoto, Yoshida Atsumasa, Matsuoka Masaru

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 68   2016.6

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    DOI: 10.1093/pasj/psw016

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  212. Development of surface-wave monitoring system for leaked CO <inf>2</inf> using a continuous and controlled seismic source

    Ikeda T.

    International Journal of Greenhouse Gas Control   Vol. 45   page: 94-105   2016.2

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    DOI: 10.1016/j.ijggc.2015.11.030

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  213. The ASTRO-H (Hitomi) X-ray Astronomy Satellite Open Access

    Takahashi Tadayuki, Kokubun Motohide, Mitsuda Kazuhisa, Kelley Richard, Ohashi Takaya, Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steve, Anabuki Naohisa, Angelini Lorella, Arnaud Keith, Asai Makoto, Audard Marc, Awaki Hisamitsu, Axelsson Magnus, Azzarello Philipp, Baluta Chris, Bamba Aya, Bando Nobutaka, Bautz Marshall, Bialas Thomas, Blandford Roger, Boyce Kevin, Brenneman Laura, Brown Greg, Bulbul Esra, Cackett Edward, Canavan Edgar, Chernyakova Maria, Chiao Meng, Coppi Paolo, Costantini Elisa, de Plaa Jelle, den Herder Jan-Willem, DiPirro Michael, Done Chris, Dotani Tadayasu, Doty John, Ebisawa Ken, Eckart Megan, Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew, Ferrigno Carlo, Foster Adam, Fujimoto Ryuichi, Fukazawa Yasushi, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi, Gandhi Poshak, Gilmore Kirk, Giustini Margherita, Goldwurm Andrea, Gu Liyi, Guainazzi Matteo, Haas Daniel, Haba Yoshito, Hagino Kouichi, Hamaguchi Kenji, Harayama Atsushi, Harrus Ilana, Hatsukade Isamu, Hayashi Takayuki, Hayashi Katsuhiro, Hayashida Kiyoshi, Hiraga Junko, Hirose Kazuyuki, Hornschemeier Ann, Hoshino Akio, Hughes John, Ichinohe Yuto, Iizuka Ryo, Inoue Yoshiyuki, Inoue Hajime, Ishibashi Kazunori, Ishida Manabu, Ishikawa Kumi, Ishimura Kosei, Ishisaki Yoshitaka, Itoh Masayuki, Iwata Naoko, Iyomoto Naoko, Jewell Chris, Kaastra Jelle, Kallman Timothy, Kamae Tuneyoshi, Kara Erin, Kataoka Jun, Katsuda Satoru, Katsuta Junichiro, Kawaharada Madoka, Kawai Nobuyuki, Kawano Taro, Kawasaki Shigeo, Khangulyan Dmitry, Kilbourne Caroline, Kimball Mark, King Ashley, Kitaguchi Takao, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kosaka Tatsuro, Koujelev Alex, Koyama Katsuji, Koyama Shu, Kretschmar Peter, Krimm Hans, Kubota Aya, Kunieda Hideyo, Laurent Philippe, Lebrun Francois, Lee Shiu-Hang, Leutenegger Maurice, Limousin Olivier, Loewenstein Michael, Long Knox, Lumb David, Madejski Grzegorz, Maeda Yoshitomo, Maier Daniel, Makishima Kazuo, Markevitch Maxim, Masters Candace, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, Mcguinness Daniel, McNamara Brian, Mehdipour Missagh, Miko Joseph, Miller Jon, Miller Eric, Mineshige Shin, Minesugi Kenji, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Koji, Mori Hideyuki, Moroso Franco, Moseley Harvey, Muench Theodore, Mukai Koji, Murakami Hiroshi, Murakami Toshio, Mushotzky Richard, Nagano Housei, Nagino Ryo, Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakano Toshio, Nakashima Shinya, Nakazawa Kazuhiro, Namba Yoshiharu, Natsukari Chikara, Nishioka Yusuke, Nobukawa Masayoshi, Nobukawa Kumiko, Noda Hirofumi, Nomachi Masaharu, O' Dell Steve, Odaka Hirokazu, Ogawa Hiroyuki, Ogawa Mina, Ogi Keiji, Ohno Masanori, Ohta Masayuki, Okajima Takashi, Okamoto Atsushi, Okazaki Tsuyoshi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Parmar Arvind, Petre Robert, Pinto Ciro, Pohl Martin, Pontius James, Porter F. Scott, Pottschmidt Katja, Ramsey Brian, Reynolds Christopher, Russell Helen, Safi-Harb Samar, Saito Shinya, Sakai Shin-ichiro, Sakai Kazuhiro, Sameshima Hiroaki, Sasaki Toru, Sato Goro, Sato Yoichi, Sato Kosuke, Sato Rie, Sawada Makoto, Schartel Norbert, Serlemitsos Peter, Seta Hiromi, Shibano Yasuko, Shida Maki, Shidatsu Megumi, Shimada Takanobu, Shinozaki Keisuke, Shirron Peter, Simionescu Aurora, Simmons Cynthia, Smith Randall, Sneiderman Gary, Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Hiroyuki, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiromitsu, Takeda Shin'ichiro, Takei Yoh, Tamagawa Toru, Tamura Takayuki, Tamura Keisuke, Tanaka Takaaki, Tanaka Yasuo, Tanaka Yasuyuki, Tashiro Makoto, Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yohko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi, Uchida Hiroyuki, Uchiyama Yasunobu, Uchiyama Hideki, Ueda Yoshihiro, Ueda Shutaro, Ueno Shiro, Uno Shin'ichiro, Urry Meg, Ursino Eugenio, de Vries Cor, Wada Atsushi, Watanabe Shin, Watanabe Tomomi, Werner Norbert, Wik Daniel, Wilkins Dan, Williams Brian, Yamada Takahiro, Yamada Shinya, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko, Yamauchi Makoto, Yamauchi Shigeo, Yaqoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Yoshida Atsumasa, Yuasa Takayuki, Zhuravleva Irina, Zoghbi Abderahmen

    SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY   Vol. 9905   2016

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    DOI: 10.1117/12.2232379

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  214. The soft gamma-ray detector (SGD) onboard ASTRO-H

    Watanabe Shin, Tajima Hiroyasu, Fukazawa Yasushi, Blandford Roger, Enoto Teruaki, Goldwurm Andrea, Hagino Kouichi, Hayashi Katsuhiro, Ichinohe Yuto, Kataoka Jun, Katsuta Junichiro, Kitaguchi Takao, Kokubun Motohide, Laurent Philippe, Lebrun Francois, Limousin Olivier, Madejski Grzegorz M., Makishima Kazuo, Mizunoe Tsunefumi, Mori Kunishiro, Nakamori Takeshi, Nakano Toshio, Nakazawa Kazuhiro, Noda Hirofumi, Odaka Hirokazu, Ohno Masanori, Ohta Masayuki, Saito Shinya, Sato Goro, Sato Rie, Takeda Shin'ichiro, Takahashi Hiromitsu, Takahashi Tadayuki, Tanaka Takaaki, Tanaka Yasuyuki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Yamaoka Kazutaka, Yatsu Yoichi, Yonetoku Daisuke, Yuasa Takayuki

    SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY   Vol. 9905   2016

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    DOI: 10.1117/12.2231962

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  215. The hard X-ray imager (HXI) onboard ASTRO-H Reviewed

    Kazuhiro Nakazawa, Goro Sato, Motohide Kokubun, Teruaki Enoto, Yasushi Fukazawa, Kouichi Hagino, Atsushi Harayama, Katsuhiro Hayashi, Jun Kataoka, Junichiro Katsuta, Philippe Laurent, Francois Lebrung, Olivier Limousin, Kazuo Makishima, Tsunefumi Mizuno, Kunishiro Mori, Takeshi Nakamori, Toshio Nakano, Hirofumi Noda, Hirokazu Odaka, Masanori Ohno, Masayuki Ohta, Shinya Saito, Rie Sato, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin'ichiro Takeda, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Shin Watanabe, Kazutaka Yamaoka, Yoichi Yatsu, Takayuki Yuasa

    SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY   Vol. 9905   2016

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    Hitomi X-ray observatory launched in 17 February 2016 had a hard X-ray imaging spectroscopy system made of two hard X-ray imagers (HXIs) coupled with two hard X-ray telescopes (HXTs). With 12 m focal length, they provide fine (2' half-power diameter; HPD) imaging spectroscopy at 5 to 80 keV. The HXI main imagers are made of 4 layers of Si and a CdTe semiconductor double-sided strip detectors, stacked to enhance detection efficiency as well as to enable photon interaction-depth sensing. Active shield made of 9 BGO scintillators surrounds the imager to provide with low background. Following the deployment of the Extensible Optical Bench (EOB) on 28 February, the HXI was gradually turned on. Two imagers successfully started observation on 14 March, and was operational till the incident lead to Hitomo loss, on 26 March. All detector channels, 1280 ch of imager and 11 channel of active shields and others each, worked well and showed performance consistent with those seen on ground. From the first light observation of G21.5-0.9 and the following Crab observations, 5 80 keV energy coverage and good detection efficiency were confirmed. With blank sky observations, we checked our background level. In some geomagnetic region, strong background continuum, presumably caused by trapped electron with energy similar to 100 keV, is seen. But by cutting the high-background time-intervals, the background became significantly lower, typically with 1-3x10(-4) counts s(-1) keV(-1) cm(-2) (here cm(2) is shown with detector geometrical area). Above 30 keV, line and continuum emission originating from activation of CdTe was significantly seen, though the level of 1-4x10(-4) counts s(-1) keV(-1) cm(-2) is still comparable to those seen in NuSTAR. By comparing the effective area and background rate, preliminary analysis shows that the HXI had a statistical sensitivity similar to NuSTAR for point sources, and more than twice better for largely extended sources.

    DOI: 10.1117/12.2231176

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  216. Long Duration X-ray Bursts Observed by MAXI

    Motoko Serino, Wataru Iwakiri, Toru Tamagawa, Takanori Sakamoto, Satoshi Nakahira, Masaru Matsuoka, Kazutaka Yamaoka, Hitoshi Negoro

    PROCEEDINGS OF THE 14TH INTERNATIONAL SYMPOSIUM ON NUCLEI IN THE COSMOS (NIC2016)     2016

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    Monitor of All-sky X-ray Image (MAXI) is X-ray mission on the International Space Station. MAXI scans all sky every 92 minutes and detects various X-ray transient events including X-ray bursts. Among the X-ray bursts observed by MAXI, eleven had long duration and were observed more than one scan. Six out of eleven long bursts have the e-folding time of >1 hour, that should be classified as "superbursts", while the rest are "intermediate-duration bursts". The total emitted energy of these long X-ray bursts range from 10(41) to 10(42) ergs. The lower limits of the superburst recurrence time of 4U 0614+091 and Ser X-1 are calculated as 4400 and 59 days, which may be consistent with the observed recurrence time of 3523 and 1148 days, respectively.

    DOI: 10.7566/JPSCP.14.020304

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  217. Solar Neutron and Gamma-ray Monitor on the ChubuSat-2 Satellite

    YAMAOKA Kazutaka, MATSUSHITA Koji, MIYATA Kikuko, MIYAZAWA Takuya, NAGANO Hosei, NARUSAWA Yasutaka, NISHINO Masaki, NODA Sosuke, OSEKI Shinji, SADAMOTO Masaaki, SUZUKI Asami, BABAZAKI Yasunobu, TAJIMA Hiroyasu, TAMURA Keisuke, TANAKA Hidetaka, TANAKA Hiroya, TAGUCHI Masato, TAM Dao ngoc hanh, WATABE Toyoki, HAYASHI Yuki, KANEDA Hidehiro, KATSURAGAWA Taishi, KAWAHARA Hiroaki, KOKUSHO Takuma, KUBO Shin, MATSUNAGA Kazunari

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN   Vol. 14 ( 30 ) page: Pf_141 - Pf_146   2016

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    <p>The ChubuSat is a Japanese microsatellite technology demonstration mission jointly depeloped by Nagoya university, Daido university, and medium or small-sized aerospace industrial companies in the Chubu area of central Japan. ChubuSat-2 is the second ChubuSat following ChubuSat-1 which was launched by the Russian DNEPR rocket on November 6, 2014. It was selected as one of the four piggyback payloads of the X-ray astronomy satellite ASTRO-H in 2014 summer, and will be launched by the H-IIA rocket from Japan Aerospace Exploration Agency (JAXA) Tanegashima Space Center (TNSC) in winter season of fiscal year (FY) 2015. The ChubuSat-2 mission is devoted to monitoring neutrons and gamma-rays in the ASTRO-H orbit which can be noise sources for ASTRO-H X-ray and soft gamma-ray observations. The mission involves solar neutron observations which were originally proposed by graduate students who joined the leadership development program for space exploration and research, a program for leading graduate schools at Nagoya University. In this paper, we describe the outline of the ChubuSat-2 satellite and the details of the mission instrument, the radiation detector (RD).</p>

    DOI: 10.2322/tastj.14.Pf_141

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  218. Investigation of primordial black hole bursts using interplanetary network gamma-ray bursts

    Ukwatta, T.N., Hurley, K., MacGibbon, J.H., Svinkin, D.S., Aptekar, R.L., Golenetskii, S.V., Frederiks, D.D., a, shin, V.D., Goldsten, J., Boynton, W., Kozyrev, A.S., Rau, A., Von Kienlin, A., Zhang, X., Connaughton, V., Yamaoka, K., Ohno, M., Ohmori, N., Feroci, M., Frontera, F., Guidorzi, C., Cline, T., Gehrels, N., Krimm, H.A., McTiernan, J.

    Astrophysical Journal   Vol. 826 ( 1 )   2016

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    DOI: 10.3847/0004-637X/826/1/98

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  219. Studies of trigger performance for Soft Gamma-ray Detector

    Kinoshita Masaomi, Tajima Hiroyasu, Fukazawa Yasushi, Watanabe Shin, Ichinohe Yuto, Uchida Yusuke, Uchiyama Hideki, Edahiro Ikumi, Ohta Masayuki, Ohno Masanori, Odaka Hirokazu, Katsuragawa Miho, Kawano Takafumi, Shirakawa Hiroyuki, Takahashi Tadayuki, Takahashi Hiromitsu, Takeda Shin'ichiro, Tanaka Yasuyuki, Hayashi Katsuhiro, Furui Shunya, Mizuno Tsunefumi, Yamaoka Kazutaka, SGD Team

    Meeting Abstracts of the Physical Society of Japan   Vol. 71   page: 374 - 374   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_374

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  220. NuSTAR AND SUZAKU OBSERVATIONS OF THE HARD STATE IN CYGNUS X-1: LOCATING THE INNER ACCRETION DISK Open Access

    Parker M. L., Tomsick J. A., Miller J. M., Yamaoka K., Lohfink A., Nowak M., Fabian A. C., Alston W. N., Boggs S. E., Christensen F. E., Craig W. W., Fuerst F., Gandhi P., Grefenstette B. W., Grinberg V., Hailey C. J., Harrison F. A., Kara E., King A. L., Stern D., Walton D. J., Wilms J., Zhang W. W.

    ASTROPHYSICAL JOURNAL   Vol. 808 ( 1 )   2015.7

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    DOI: 10.1088/0004-637X/808/1/9

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  221. THE ACCRETING BLACK HOLE SWIFT J1753.5-0127 FROM RADIO TO HARD X-RAY Open Access

    Tomsick John A., Rahoui Farid, Kolehmainen Mari, Miller-Jones James, Fuerst Felix, Yamaoka Kazutaka, Akitaya Hiroshi, Corbel Stephane, Coriat Mickael, Done Chris, Gandhi Poshak, Harrison Fiona A., Huang Kuiyun, Kaaret Philip, Kalemci Emrah, Kanda Yuka, Migliari Simone, Miller Jon M., Moritani Yuki, Stern Daniel, Uemura Makoto, Urata Yuji

    ASTROPHYSICAL JOURNAL   Vol. 808 ( 1 )   2015.7

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    DOI: 10.1088/0004-637X/808/1/85

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  222. A MISSING-LINK IN THE SUPERNOVA-GRB CONNECTION: THE CASE OF SN 2012ap Open Access

    Chakraborti Sayan, Soderberg Alicia, Chomiuk Laura, Kamble Atish, Yadav Naveen, Ray Alak, Hurley Kevin, Margutti Raffaella, Milisavljevic Dan, Bietenholz Michael, Brunthaler Andreas, Pignata Giuliano, Pian Elena, Mazzali Paolo, Fransson Claes, Bartel Norbert, Hamuy Mario, Levesque Emily, MacFadyen Andrew, Dittmann Jason, Krauss Miriam, Briggs M. S., Connaughton V., Yamaoka K., Takahashi T., Ohno M., Fukazawa Y., Tashiro M., Terada Y., Murakami T., Goldsten J., Barthelmy S., Gehrels N., Cummings J., Krimm H., Palmer D., Golenetskii S., Aptekar R., Frederiks D., Svinkin D., Cline T., Mitrofanov I. G., Golovin D., Litvak M. L., Sanin A. B., Boynton W., Fellows C., Harshman K., Enos H., von Kienlin A., Rau A., Zhang X., Savchenko V.

    ASTROPHYSICAL JOURNAL   Vol. 805 ( 2 )   2015.6

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    DOI: 10.1088/0004-637X/805/2/187

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  223. Sub-MeV band observation of a hard burst from AXP 1E 1547.0-5408 with the Suzaku Wide-band All-sky Monitor Open Access

    Yasuda Tetsuya, Iwakiri Wataru B., Tashiro Makoto S., Terada Yukikatsu, Kouzu Tomomi, Enoto Teruaki, Nakagawa Yujin E., Bamba Aya, Urata Yuji, Yamaoka Kazutaka, Ohno Masanori, Shibata Shinpei, Makishima Kazuo

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 67 ( 3 )   2015.6

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    DOI: 10.1093/pasj/psv011

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  224. Low-mass X-ray binary MAXI J1421-613 observed by MAXI GSC and Swift XRT Open Access

    Serino Motoko, Shidatsu Megumi, Ueda Yoshihiro, Matsuoka Masaru, Negoro Hitoshi, Yamaoka Kazutaka, Kennea Jamie A., Fukushima Kosuke, Nagayama Takahiro

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 67 ( 2 )   2015.4

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    DOI: 10.1093/pasj/psv003

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  225. The CALorimetric Electron Telescope (CALET) for high-energy astroparticle physics on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Buckley J. H., Castellini G., Cherry M. L., Collazuol G., Ebisawa K., Di Felice V., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Israel M. H., Javaid A., Kamioka E., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kawanaka N., Kitamura H., Kotani T., Krawczynski H. S., Krizmanic J. F., Kubota A., Kuramata S., Lomtadze T., Maestro P., Marcelli L., Marrocchesi P. S., Mitchell J. W., Miyake S., Mizutani K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakagawa Y. E., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Palma F., Papini P., Rauch B. F., Ricciarini S. B., Sakamoto T., Sasaki M., Shibata M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    3RD INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS   Vol. 95   2015

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    DOI: 10.1051/epjconf/20159504056

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  226. The CALorimetric Electron Telescope (CALET) for high-energy astroparticle physics on the International Space Station Open Access

    Adriani O., Akaike Y., Asano K., Asaoka Y., Bagliesi M. G., Bigongiari G., Binns W. R., Bonechi S., Bongi M., Buckley J. H., Castellini G., Cherry M. L., Collazuol G., Ebisawa K., Di Felice V., Fuke H., Guzik T. G., Hams T., Hareyama M., Hasebe N., Hibino K., Ichimura M., Ioka K., Israel M. H., Javaid A., Kamioka E., Kasahara K., Kataoka J., Kataoka R., Katayose Y., Kawanaka N., Kitamura H., Kotani T., Krawczynski H. S., Krizmanic J. F., Kubota A., Kuramata S., Lomtadze T., Maestro P., Marcelli L., Marrocchesi P. S., Mitchell J. W., Miyake S., Mizutani K., Moiseev A. A., Mori K., Mori M., Mori N., Motz H. M., Munakata K., Murakami H., Nakagawa Y. E., Nakahira S., Nishimura J., Okuno S., Ormes J. F., Ozawa S., Palma F., Papini P., Rauch B. F., Ricciarini S. B., Sakamoto T., Sasaki M., Shibata M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J. P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    24TH EUROPEAN COSMIC RAY SYMPOSIUM (ECRS)   Vol. 632   2015

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    DOI: 10.1088/1742-6596/632/1/012023

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  227. 25pSJ-5 Calibration Method for the Hard X-ray Imager On-board the ASTRO-H Satellite Open Access

    Mimura T., HXI team

    Meeting Abstracts of the Physical Society of Japan   Vol. 70   page: 353 - 353   2015

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    DOI: 10.11316/jpsgaiyo.70.2.0_353

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  228. A LUMINOUS X-RAY FLARE from the NUCLEUS of the DORMANT BULGELESS SPIRAL GALAXY NGC 247

    Feng, H., Ho, L.C., Kaaret, P., Tao, L., Yamaoka, K., Zhang, S., Gris{\'e}, F.

    Astrophysical Journal   Vol. 807 ( 2 )   2015

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    DOI: 10.1088/0004-637X/807/2/185

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  229. Status and performance of the CALorimetric Electron Telescope (CALET) on the international space station

    Adriani O., Akaike Y., Asaoka Y., Asano K., Bagliesi M.G., Bigongiari G., Binns W.R., Bongi M., Buckley J.H., Cassese A., Castellini G., Cherry M.L., Collazuol G., Ebisawa K., di Felice V., Fuke H., Guzik T.G., Hamsa T., Hasebe N., Hareyama M., Hibino K., Ichimura M., Ioka K., Israel M.H., Javaid A., Kamioka E., Kasahara K., Katayose Y., Kataoka J., Kataoka R., Kawanaka N., Kitamura H., Kotani T., Krawczynski H.S., Krizmanic J.F., Kubota A., Kuramata S., Lomtadze T., Maestro P., Marcelli L., Marrocchesi P.S., Mitchell J.W., Miyake S., Mizutani K., Motz H.M., Moiseev A.A., Mori K., Mori M., Mori N., Munakata K., Murakami H., Nakagawa Y.E., Nakahira S., Nishimura J., Okuno S., Ormes J.F., Ozawa S., Palma F., Papini P., Rauch B.F., Ricciarini S., Sakamoto T., Sasaki M., Shibata M., Shimizu Y., Shiomi A., Sparvoli R., Spillantini P., Takahashi I., Takayanagi M., Takita M., Tamura T., Tateyama N., Terasawa T., Tomida H., Torii S., Tunesada Y., Uchihori Y., Ueno S., Vannuccini E., Wefel J.P., Yamaoka K., Yanagita S., Yoshida A., Yoshida K., Yuda T.

    Nuclear Physics B - Proceedings Supplements   Vol. 256-257   page: 225 - 232   2014.12

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    The CALorimetric Electron Telescope (CALET) space experiment, currently under development by Japan in collaboration with Italy and the United States, will measure the flux of cosmic-ray electrons (including positrons) to 20 TeV, gamma rays to 10 TeV and nuclei with Z=1 to 40 up to 1,000 TeV during a two-year mission on the International Space Station (ISS), extendable to five years. These measurements are essential to search for dark matter signatures, investigate the mechanism of cosmic-ray acceleration and propagation in the Galaxy and discover possible astrophysical sources of high-energy electrons nearby the Earth. The instrument consists of two layers of segmented plastic scintillators for the cosmic-ray charge identification (CHD), a 3 radiation length thick tungsten-scintillating fiber imaging calorimeter (IMC) and a 27 radiation length thick lead-tungstate calorimeter (TASC). CALET has sufficient depth, imaging capabilities and excellent energy resolution to allow for a clear separation between hadrons and electrons and between charged particles and gamma rays. The instrument will be launched to the ISS within 2014 Japanese Fiscal Year (by the end of March 2015) and installed on the Japanese Experiment Module-Exposed Facility (JEM-EF). In this paper, we will review the status and main science goals of the mission and describe the instrument configuration and performance.

    DOI: 10.1016/j.nuclphysbps.2014.10.026

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  230. MAXI observations of gamma-ray bursts Open Access

    Serino Motoko, Sakamoto Takanori, Kawai Nobuyuki, Yoshida Atsumasa, Ohno Masanori, Ogawa Yuji, Nishimura Yasunori, Fukushima Kosuke, Higa Masaya, Ishikawa Kazuto, Ishikawa Masaki, Kawamuro Taiki, Kimura Masashi, Matsuoka Masaru, Mihara Tatehiro, Morii Mikio, Nakagawa Yujin E., Nakahira Satoshi, Nakajima Motoki, Nakano Yuki, Negoro Hitoshi, Onodera Takuya, Sasaki Masayuki, Shidatsu Megumi, Sugimoto Juri, Sugizaki Mutsumi, Suwa Fumitoshi, Suzuki Kazuhiko, Tachibana Yutaro, Takagi Toshihiro, Toizumi Takahiro, Tomida Hiroshi, Tsuboi Yohko, Tsunemi Hiroshi, Ueda Yoshihiro, Ueno Shiro, Usui Ryuichi, Yamada Hisaki, Yamamoto Takayuki, Yamaoka Kazutaka, Yamauchi Makoto, Yoshidome Koshiro, Yoshii Taketoshi

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 66 ( 5 )   2014.10

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    DOI: 10.1093/pasj/psu063

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  231. A DELAYED TRANSITION TO THE HARD STATE FOR 4U 1630-47 AT THE END OF ITS 2010 OUTBURST Open Access

    Tomsick John A., Yamaoka Kazutaka, Corbel Stephane, Kalemci Emrah, Migliari Simone, Kaaret Philip

    ASTROPHYSICAL JOURNAL   Vol. 791 ( 1 )   2014.8

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    DOI: 10.1088/0004-637X/791/1/70

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  232. SPECTRAL AND TIMING PROPERTIES OF THE BLACK HOLE X-RAY BINARY H1743-322 IN THE LOW/HARD STATE STUDIED WITH SUZAKU Reviewed Open Access

    M. Shidatsu, Y. Ueda, S. Yamada, C. Done, T. Hori, K. Yamaoka, A. Kubota, T. Nagayama, Y. Moritani

    ASTROPHYSICAL JOURNAL   Vol. 789 ( 2 ) page: 100   2014.7

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    DOI: 10.1088/0004-637X/789/2/100

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  233. Synchrotron self-inverse compton radiation from reverse shock on GRB 120326A Open Access

    Urata, Y., Huang, K., Takahashi, S., Im, M., Yamaoka, K., Tashiro, M., Kim, J.-W., Jang, M., Pak, S.

    Astrophysical Journal   Vol. 789 ( 2 )   2014.7

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    DOI: 10.1088/0004-637X/789/2/146

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  234. Development and verification of signal processing system of BGO active shield onboard Astro-H

    Masanori Ohno, Shin'Ya Tokuda, Takafumi Kawano, Shunya Furui, Ikumi Edahiro, Hiromitsu Takahashi, Kunihiro Goto, Yasushi Fukazawa, Hiroaki Murakami, Syogo Kobayashi, Soki Sakurai, Makoto Sasano, Shunsuke Torii, Toshio Nakano, Ko Ono, Kazuma Miyake, Terukazu Nishida, Kazuhiro Nakazawa, Kazuo Makishima, Kouichi Hagino, Takayuki Yuasa, Hirokazu Odaka, Rie Sato, Shin Watanabe, Motohide Kokubun, Goro Sato, Jun Kataoka, Tatsuhiko Saito, Kazutaka Yamaoka, Hiroyasu Tajima, Yoichi Yatsu, Takeshi Nakamori, Hideki Uchiyama, Daisuke Yonetoku

    Proceedings of SPIE - The International Society for Optical Engineering   Vol. 9144   2014

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    The hard X-ray imager (HXI) and soft gamma-ray detector (SGD) onboard Astro-H observe astronomical objects with high sensitivity in the hard X-ray (5-80 keV) and soft gamma-ray (40-600 keV) energy bands. To achieve this high sensitivity, background rejection is essential, and these detectors are surrounded by large and thick bismuth germinate scintillators as an active shield. We have developed adequate trigger logic for both the HXI and SGD to process signals from main detector and BGO shield simultaneously and then we optimized the trigger delay and width, with consideration of the trigger latch efficiency. The shield detector system performs well, even after it is assembled as the HXI sensor. The energy threshold maintains the same level as that observed during the prototype development phase, and the experimental room background level of the main detector is successfully reduced by our optimized trigger timing.

    DOI: 10.1117/12.2055676

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  235. The Hard X-ray Imager (HXI) for the ASTRO-H mission Reviewed

    Goro Sato, Motohide Kokubun, Kazuhiro Nakazawa, Teruaki Enoto, Yasushi Fukazawa, Atsushi Harayama, Katsuhiro Hayashi, Jun Kataoka, Junichiro Katsuta, Madoka Kawaharada, Philippe Laurent, Francois Lebrun, Olivier Limousin, Kazuo Makishima, Tsunefumi Mizuno, Kunishiro Mori, Takeshi Nakamori, Hirofumi Noda, Hirokazu Odaka, Masanori Ohno, Masayuki Ohta, Shinya Saito, Rie Sato, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin'ichiro Takeda, Yukikatsu Terada, Hideki Uchiyama, Yasunobu Uchiyama, Shin Watanabe, Kazutaka Yamaoka, Yoichi Yatsu, Takayuki Yuasa

    SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY   Vol. 9144   2014

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    The 6th Japanese X-ray satellite, ASTRO-H, is scheduled for launch in 2015. The hard X-ray focusing imaging system will observe astronomical objects with the sensitivity for detecting point sources with a brightness of 1/100,000 times fainter than the Crab nebula at &gt; 10 keV. The Hard X-ray Imager (HXI) is a focal plane detector 12 m below the hard X-ray telescope (HXT) covering the energy range from 5 to 80 keV. The HXI is composed of a stacked Si/CdTe semiconductor detector module and surrounding BGO scintillators. The latter work as active shields for efficient reduction of background events caused by cosmic-ray particles, cosmic X-ray background, and in-orbit radiation activation. In this paper, we describe the detector system, and present current status of flight model development, and performance of HXI using an engineering model of HXI.

    DOI: 10.1117/12.2055629

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    Other Link: http://orcid.org/0000-0003-3529-3029

  236. The ASTRO-H X-ray Astronomy Satellite Open Access

    Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Greg Brown, Edward Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kenji Hamaguchi, Atsushi Harayama, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Una Hwang, Ryo Iizuka, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Naoko Iwata, Naoko Iyomoto, Chris Jewell, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangaluyan, Caroline Kilbourne, Mark Kimball, Masashi Kimura, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Saori Konami, Tatsuro Kosaka, Alexander Koujelev, Katsuji Koyama, Hans Krimm, Aya Kubota, Hideyo Kunieda, Stephanie LaMassa, Philippe Laurent, Francois Lebrun, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, Brian McNamara, Joseph Miko, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Franco Moroso, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Housei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Hirofumi Noda, Masaharu Nomachi, Steve O' Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stephane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Martin Pohl, James Pontius, F. Scott Porter, Katja Pottschmidt, Brian Ramsey, Rubens Reis, Christopher Reynolds, Claudio Ricci, Helen Russell, Samar Safi-Harb, Shinya Saito, Shin-ichiro Sakai, Hiroaki Sameshima, Kosuke Sato, Rie Sato, Goro Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Takanobu Shimada, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiroaki Takahashi, Hiromitsu Takahashi, Shin-ichiro Takeda, Yoh Takei, Toru Tamagawa, Keisuke Tamura, Takayuki Tamura, Takaaki Tanaka, Yasuyuki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yoko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Yoshihiro Ueda, Shutaro Uedag, Shiro Ueno, Shinichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Nicholas White, Dan Wilkins, Shinya Yamada, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yadoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi, John ZuHone

    SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY   Vol. 9144   2014

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    The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions developed by the Institute of Space and Astronautical Science (ISAS), with a planned launch in 2015. The ASTRO-H mission is equipped with a suite of sensitive instruments with the highest energy resolution ever achieved at E > 3 keV and a wide energy range spanning four decades in energy from soft X-rays to gamma-rays. The simultaneous broad band pass, coupled with the high spectral resolution of Delta E <= 7 eV of the micro-calorimeter, will enable a wide variety of important science themes to be pursued. ASTRO-H is expected to provide breakthrough results in scientific areas as diverse as the large-scale structure of the Universe and its evolution, the behavior of matter in the gravitational strong field regime, the physical conditions in sites of cosmic-ray acceleration, and the distribution of dark matter in galaxy clusters at different redshifts.

    DOI: 10.1117/12.2055681

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  237. Soft Gamma-ray Detector (SGD) onboard the ASTRO-H Reviewed

    Fukazawa Yasushi, Tajima Hiroyasu, Watanabe Shin, Blandford Roger, Hayashi Katsuhiro, Harayama Atsushi, Kataoka Jun, Kawaharada Madoka, Kokubun Motohide, Laurent Philippe, Lebrun Francois, Limousin Olivier, Madejski Grzegorz M, Makishima Kazuo, Mizuno Tsunefumi, Mori Kunishiro, Nakamori Takeshi, Nakazawa Kazuhiro, Noda Hirofumi, Odaka Hirokazu, Ohno Masanori, Ohta Masayuki, Saito Shin'ya, Sato Goro, Sato Rie, Takeda Shin'ichiro, Takahashi Hiromitsu, Takahashi Tadayuki, Tanaka Yasuyuki, Terada Yukikatsu, Uchiyama Hideki, Uchiyama Yasunobu, Yamaoka Kazutaka, Yatsu Yoichi, Yonetoku Daisuke, Yuasa Takayuki

    SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY   Vol. 9144   2014

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    DOI: 10.1117/12.2055292

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  238. High-z gamma-ray bursts for unraveling the dark ages mission HiZ-GUNDAM Open Access

    Yonetoku, Daisuke, Mihara, Tatehiro, Sawano, Tatsuya, Ikeda, Hirokazu, Atsushi, Harayama, Shunsuke, Takata, Yoshida, Kazuki, Seta, Hiroki, Toyanago, Asuka, Kagawa, Yasuaki, Kawai, Kentaro, Kawai, Nobuyuki, Sakamoto, Takanori, Serino, Motoko, Kurosawa, Shunsuke, Gunji, Shuichi, Tanimori, Toru, Murakami, Toshio, Yatsu, Yoichi, Yamaoka, Kazutaka, Yoshida, Atsumasa, Kawabata, Koji, Matsumoto, Toshio, Tsumura, Koji, Matsuura, Shuji, Shirahata, Mai, Okita, Hirofumi, Yanagisawa, Kensi, Yoshida, Michitoshi, Motohara, Kentaro, HiZ-GUNDAM Grp, Takahashi, T, DenHerder, JWA, Bautz, M

    Space Telescopes and Instrumentation 2014: Ultraviolet To Gamma Ray   Vol. 9144   2014

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    DOI: 10.1117/12.2055041

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    arXiv

    Other Link: http://arxiv.org/pdf/1406.4202v1

  239. Optical follow-up observations of PTF10qts, a luminous broad-lined type Ic supernova found by the palomar transient factory

    Walker, E.S., Mazzali, P.A., Pian, E., Hurley, K., Arcavi, I., Cenko, S.B., Gal-Yam, A., Horesh, A., Kasliwal, M., Poznanski, D., Silverman, J.M., Sullivan, M., Bloom, J.S., Filippenko, A.V., Kulkarni, S.R., Nugent, P.E., Ofek, E., Barthelmy, S., Boynton, W., Goldsten, J., Golenetskii, S., Ohno, M., Tashiro, M.S., Yamaoka, K., Zhang, X.L.

    Monthly Notices of the Royal Astronomical Society   Vol. 442 ( 3 )   2014

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    DOI: 10.1093/mnras/stu1017

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  240. The accretion disk and ionized absorber of the 9.7 hr dipping black hole binary MAXI J1305-704 Open Access

    Shidatsu, M., Ueda, Y., Nakahira, S., Done, C., Morihana, K., Sugizaki, M., Mihara, T., Hori, T., Negoro, H., Kawai, N., Yamaoka, K., Ebisawa, K., Matsuoka, M., Serino, M., Yoshikawa, T., Nagayama, T., Matsunaga, N.

    Astrophysical Journal   Vol. 779 ( 1 )   2013.12

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    DOI: 10.1088/0004-637X/779/1/26

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  241. SWIFT AND RXTE OBSERVATIONS OF THE BLACK HOLE TRANSIENT GX 339-4 IN THE HARD STATE BETWEEN OUTBURSTS Open Access

    Allured Ryan, Tomsick John A., Kaaret Philip, Yamaoka Kazutaka

    ASTROPHYSICAL JOURNAL   Vol. 774 ( 2 )   2013.9

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    DOI: 10.1088/0004-637X/774/2/135

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  242. THE 37 MONTH MAXI/GSC SOURCE CATALOG OF THE HIGH GALACTIC-LATITUDE SKY Open Access

    Kazuo Hiroi, Yoshihiro Ueda, Masaaki Hayashida, Megumi Shidatsu, Ryosuke Sato, Taiki Kawamuro, Mutsumi Sugizaki, Satoshi Nakahira, Motoko Serino, Nobuyuki Kawai, Masaru Matsuoka, Tatehiro Mihara, Mikio Morii, Motoki Nakajima, Hitoshi Negoro, Takanori Sakamoto, Hiroshi Tomida, Yohko Tsuboi, Hiroshi Tsunemi, Shiro Ueno, Kazutaka Yamaoka, Atsumasa Yoshida, Masato Asada, Satoshi Eguchi, Takanori Hanayama, Masaya Higa, Kazuto Ishikawa, Masaki Ishikawa, Naoki Isobe, Mitsuhiro Kohama, Masashi Kimura, Kumiko Morihana, Yujin E. Nakagawa, Yuki Nakano, Yasunori Nishimura, Yuji Ogawa, Masayuki Sasaki, Juri Sugimoto, Toshihiro Takagi, Ryuichi Usui, Takayuki Yamamoto, Makoto Yamauchi, Koshiro Yoshidome

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 207 ( 2 )   2013.8

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    DOI: 10.1088/0067-0049/207/2/36

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  243. THE INTERPLANETARY NETWORK SUPPLEMENT TO THE FERMI GBM CATALOG OF COSMIC GAMMA-RAY BURSTS Reviewed Open Access

    K. Hurley, V. D. Pal'shin, R. L. Aptekar, S. V. Golenetskii, D. D. Frederiks, E. P. Mazets, D. S. Svinkin, M. S. Briggs, V. Connaughton, C. Meegan, J. Goldsten, W. Boynton, C. Fellows, K. Harshman, I. G. Mitrofanov, D. V. Golovin, A. S. Kozyrev, M. L. Litvak, A. B. Sanin, A. Rau, A. von Kienlin, X. Zhang, K. Yamaoka, Y. Fukazawa, Y. Hanabata, M. Ohno, T. Takahashi, M. Tashiro, Y. Terada, T. Murakami, K. Makishima, S. Barthelmy, T. Cline, N. Gehrels, J. Cummings, H. A. Krimm, D. M. Smith, E. Del Monte, M. Feroci, M. Marisaldi

    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES   Vol. 207 ( 2 )   2013.8

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    We present Interplanetary Network (IPN) data for the gamma-ray bursts in the first Fermi Gamma-Ray Burst Monitor (GBM) catalog. Of the 491 bursts in that catalog, covering 2008 July 12 to 2010 July 11, 427 were observed by at least one other instrument in the nine-spacecraft IPN. Of the 427, the localizations of 149 could be improved by arrival time analysis (or "triangulation"). For any given burst observed by the GBM and one other distant spacecraft, triangulation gives an annulus of possible arrival directions whose half-width varies between about 0.'4 and 32 degrees, depending on the intensity, time history, and arrival direction of the burst, as well as the distance between the spacecraft. We find that the IPN localizations intersect the 1 sigma GBM error circles in only 52% of the cases, if no systematic uncertainty is assumed for the latter. If a 6 degrees systematic uncertainty is assumed and added in quadrature, the two localization samples agree about 87% of the time, as would be expected. If we then multiply the resulting error radii by a factor of three, the two samples agree in slightly over 98% of the cases, providing a good estimate of the GBM 3 sigma error radius. The IPN 3 sigma error boxes have areas between about 1 arcmin(2) and 110 deg(2), and are, on the average, a factor of 180 smaller than the corresponding GBM localizations. We identify two bursts in the IPN/GBM sample that did not appear in the GBM catalog. In one case, the GBM triggered on a terrestrial gamma flash, and in the other, its origin was given as "uncertain." We also discuss the sensitivity and calibration of the IPN.

    DOI: 10.1088/0067-0049/207/2/39

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  244. Spectral evolution of a New X-Ray transient MAXIJ0556-332 observed by MAXI, swift, and RXTE Reviewed

    Mutsumi Sugizaki, Kazutaka Yamaoka, Masaru Matsuoka, Jamie A. Kennea, Tatehiro Mihara, Kazuo Hiroi, Masaki Ishikawa, Naoki Isobe, Nobuyuki Kawai, Masashi Kimura, Hiroki Kitayama, Mitsuhiro Kohama, Takanori Matsumura, Mikio Morii, Yujin E. Nakagawa, Satoshi Nakahira, Motoki Nakajima, Hitoshi Negoro, Motoko Serino, Megumi Shidatsu, Tetsuya Sootome, Kousuke Sugimori, Fumitoshi Suwa, Takahiro Toizumi, Hiroshi Tomida, Yoko Tsuboi, Hiroshi Tsunemi, Yoshihiro Ueda, Shiro Ueno, Ryuichi Usui, Takayuki Yamamoto, Makoto Yamauchi, Kyohei Yamazaki, Atsumasa Yoshida

    Publications of the Astronomical Society of Japan   Vol. 65 ( 3 )   2013.6

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    DOI: 10.1093/pasj/65.3.58

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  245. CALET Gamma-ray Burst Monitor (CGBM)

    Yamaoka K., Yoshida A., Sakamoto T., Takahashi I., Hara T., Yamamoto T., Kawakubo Y., Inoue R., Terazawa S., Fujioka R., Senuma K., Nakahira S., Tomida H., Ueno S., Torii S., Cherry M.L., Ricciarini S.

    Proceedings of the 33rd International Cosmic Rays Conference Icrc 2013   Vol. 2013-October   2013

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    The CALET Gamma-ray Burst Monitor (CGBM) is the secondary scientific instrument of the CALET mission on the International Space Station (ISS), which is scheduled for launch by H-IIB/HTV in 2014. The CGBM provides a broadband energy coverage from 7 keV to 20 MeV, and simultaneous observations with the primary instrument Calorimeter (CAL) in the GeV - TeV gamma-ray range and Advanced Star Camera (ASC) in the optical for gamma-ray bursts (GRBs) and other X-gamma-ray transients. The CGBM consists of two kinds of scintillators: two LaBr<inf>3</inf>(Ce) (7 keV - 1 MeV) and one BGO (100 keV - 20 MeV) each read by a single photomultiplier. The LaBr<inf>3</inf>(Ce) crystal, used in space for the first time here for celestial gamma-ray observations, enables GRB observations over a broad energy range from low energy X-ray emissions to gamma rays. The detector performance and structures have been verified using the bread-board model (BBM) via vibration and thermal vacuum tests. The CGBM is currently in the development phase of the proto-flight model (PFM) and the pre-flight calibration of the CGBM is planned for August 2013. In this presentation, we report on the current status and expected performance of CGBM for GRB observations.

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  246. The status report of CALET Gamma ray burst monitor Reviewed

    Kawakudo Yuta, Nakahira Satoshi, Tomida Hiroshi, Ueno Shiro, Nakagawa Yujin, Morikuni Jyo, Torii Shoji, CALET Collaboration, Inoue Ryota, Terazawa Shunsuke, Senuma Kazumasa, Fujioka Rie, Takahashi Ichiro, Sakamoto Takanori, Yoshida Atsumasa, Yamaoka Kazutaka

    Meeting Abstracts of the Physical Society of Japan   Vol. 68 ( 0 ) page: 115 - 115   2013

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    DOI: 10.11316/jpsgaiyo.68.2.1.0_115_3

    CiNii Research

  247. A propeller-effect interpretation of MAXI/GSC light curves of 4U 1608-52 and Aql X-1 and application to XTE J1701-462

    Asai, K., Matsuoka, M., Mihara, T., Sugizaki, M., Serino, M., Nakahira, S., Negoro, H., Ueda, Y., Yamaoka, K.

    Astrophysical Journal   Vol. 773 ( 2 )   2013

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    DOI: 10.1088/0004-637X/773/2/117

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  248. Interplanetary network localizations of konus short gamma-ray bursts

    Pal{'}Shin, V.D., Hurley, K., Svinkin, D.S., Aptekar, R.L., Golenetskii, S.V., Frederiks, D.D., Mazets, E.P., Oleynik, P.P., Ulanov, M.V., Cline, T., Mitrofanov, I.G., Golovin, D.V., Kozyrev, A.S., Litvak, M.L., Sanin, A.B., Boynton, W., Fellows, C., Harshman, K., Trombka, J., McClanahan, T., Starr, R., Goldsten, J., Gold, R., Rau, A., Von Kienlin, A., Savchenko, V., Smith, D.M., Hajdas, W., Barthelmy, S.D., Cummings, J., Gehrels, N., Krimm, H., Palmer, D., Yamaoka, K., Ohno, M., Fukazawa, Y., Hanabata, Y., Takahashi, T., Tashiro, M., Terada, Y., Murakami, T., Makishima, K., Briggs, M.S., Kippen, R.M., Kouveliotou, C., Meegan, C., Fishman, G., Connaughton, V., Bo{\"e}r, M., Guidorzi, C., Frontera, F., Montanari, E., Rossi, F., Feroci, M., Amati, L., Nicastro, L., Orlandini, M., Del Monte, E., Costa, E., Donnarumma, I., Evangelista, Y., Lapshov, I., Lazzarotto, F., Pacciani, L., Rapisarda, M., Soffitta, P., Di Cocco, G., Fuschino, F., Galli, M., Labanti, C., Marisaldi, M., Atteia, J.-L., Vanderspek, R., Ricker, G.

    Astrophysical Journal Supplement Series   Vol. 207 ( 2 )   2013

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    DOI: 10.1088/0067-0049/207/2/38

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Books 1

  1. 地上での宇宙環境の作り方、再現と実験の進め方

    山岡和貴( Role: Contributor ,  第7節 宇宙環境試験設備を用いた実験の進め方と宇宙人材育成への取り組み)

    技術情報協会  2026.3  ( ISBN:978-4-86798-143-6

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    Total pages:422   Responsible for pages:246~257   Language:Japanese Book type:Scholarly book

MISC 64

  1. 超小型衛星による,宇宙空間からの太陽中性子の観測(III)

    山岡和貴, 田島宏康, 宮田喜久子, 稲守孝哉, 野橋大輝, 宇佐見雅己, 中澤知洋, 増田智, 伊藤和也, 松下幸司, 高橋弘充, 渡邉恭子

    日本天文学会年会講演予稿集   Vol. 2021   2021

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  2. X線分光撮像衛星(XRISM)搭載軟X線撮像装置(Xtend)の開発の現状(5)

    林田清, 冨田洋, 森浩二, 野田博文, 松本浩典, 常深博, 内田裕之, 田中孝明, 鶴剛, 中嶋大, 村上弘志, 幸村孝由, 萩野浩一, 小林翔悟, 平賀純子, 内山秀樹, 信川正順, 信川久実子, 岡島崇, 吉田鉄生, 石田学, 前田良知, 堂谷忠靖, 尾崎正伸, 山内誠, 廿日出勇, 山岡和貴

    日本天文学会年会講演予稿集   Vol. 2021   2021

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  3. Proton radiation resistance of photodetector MPPC for space use

    今澤遼, 眞武寛人, 内田悠介, 高橋弘充, 内田和海, 水野恒史, 深澤泰司, 大野雅功, 大野雅功, 田島宏康, 山岡和貴, 羽鳥聡, 久米恭, 水嶋慧

    日本物理学会講演概要集(CD-ROM)   Vol. 76 ( 1 )   2021

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  4. Establishment and Practical Results Report of the Spacecraft Thermal-Design Hands-on Training Program for General Public

    宮田喜久子, 冨岡孝太, 山岡和貴

    工学教育   Vol. 69 ( 2 )   2021

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  5. Development of solar neutron and gamma-ray detector for 3U CubeSat

    野橋大輝, 山岡和貴, 田島宏康, 宮田喜久子, 稲守孝哉, PARK Ji Hyun, 中澤知洋, 増田智, 伊藤和也, 松下幸司, 高橋弘充, 渡邉恭子

    日本物理学会講演概要集(CD-ROM)   Vol. 75 ( 1 )   2020

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  6. Status of the Development of the Soft X-ray Imaging Telescope “Xtend” aboard the X-ray Imaging and Spectroscopy Mission “XRISM”

    Tanaka T., Hayashida K., Tomida H., Mori K., Uchida H., Tsuru T. G., Nakajima H., Noda H., Matsumoto H., Okajima T., Ishida M., Maeda Y., Murakami H., Yamauchi M., Hatsukade I., Nobukawa M., Nobukawa K. K., Hagino K., Kohmura T., Kobayashi S., Hiraga J. S., Uchiyama H., Yamaoka K., Ozaki M., Dotani T., Tsunemi H., the XRISM Xtend team

    Meeting Abstracts of the Physical Society of Japan   Vol. 2020   page: 533 - 533   2020

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    DOI: 10.11316/jpsgaiyo.74.1.0_533

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  7. Performance Evaluation of Proton Tracks and Radiation Tolerance for Neutron Detector Onboard Cubesat

    山岡和貴, 稲守孝哉, PARK Ji Hyun, 宮田喜久子, 宮田喜久子, 大月洋貴, 野橋大輝, 羽鳥聡, 久米恭, 水嶋慧

    若狭湾エネルギー研究センター研究年報   Vol. 22   2020

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  8. 超小型衛星による,宇宙空間からの太陽中性子の観測(III)

    山岡和貴, 田島宏康, 宮田喜久子, 稲守孝哉, PARK Ji Hyun, 野橋大輝, 中澤知洋, 増田智, 伊藤和也, 松下幸司, 高橋弘充, 渡邉恭子

    日本天文学会年会講演予稿集   Vol. 2019   2019

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  9. 超小型衛星による,宇宙空間からの太陽中性子の観測(II)

    山岡和貴, 田島宏康, 佐々井義矩, 宮田喜久子, 稲守孝哉, 中澤知洋, 増田智, 伊藤和也, 松下幸司, 高橋弘充, 渡邉恭子

    日本天文学会年会講演予稿集   Vol. 2019   2019

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  10. Report on a current thermal design plan for SONGS (SOlar Neutron and Gamma-ray Spectroscopy) mission

    宮田喜久子, 山岡和貴, 稲守孝哉, 田島宏康, PARK Ji Hyun

    日本航空宇宙学会中部・関西支部合同秋期大会講演論文集(CD-ROM)   Vol. 56th   2019

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  11. Overview and Current Status Report of the SONGS (SOlar Neutron and Gamma-ray Spectroscopy) Mission

    宮田喜久子, 山岡和貴, 稲守孝哉, 田島宏康, PARK Ji Hyun

    宇宙科学技術連合講演会講演集(CD-ROM)   Vol. 63rd   2019

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  12. 3Uキューブサットによる太陽中性子・ガンマ線観測

    山岡和貴, 田島宏康, 宮田喜久子, 稲守孝哉, 佐々井義矩, 中澤知洋, 増田智, 松下幸司, 伊藤和也, 高橋弘充, 渡邉恭子

    日本地球惑星科学連合大会予稿集(Web)   Vol. 2019   2019

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  13. Development status of the soft X-ray imaging telescope “Xtend” for X-Ray Imaging and Spectroscopy Mission “XRISM” (4)

    Mori K., Hayashida K., Tomida H., Tanaka T., Uchida H., Tsuru T. G., Nakajima H., Noda H., Matsumoto H., Okajima T., Ishida M., Maeda Y., Murakami H., Yamauchi M., Hatsukade I., Nobukawa M., Nobukawa K. K., Kohmura T., Hagino K., Kobayashi S., Hiraga J. S., Uchiyama H., Yamaoka K., Ozaki M., Dotani T., Tsunemi H., the XRISM Xtend team

    Meeting Abstracts of the Physical Society of Japan   Vol. 74.2   page: 409 - 409   2019

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    DOI: 10.11316/jpsgaiyo.74.2.0_409

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  14. X線分光撮像衛星XRISM搭載軟X線撮像装置Xtendのフライト用X線CCD素子の性能評価(1):電荷転送効率評価

    佐藤仁, 金丸善朗, 高木駿亨, 寺田裕大, 住田知也, 森浩二, 林田清, 冨田洋, 田中孝明, 内田裕之, 天野雄輝, 鶴剛, 中嶋大, 野田博文, 松本浩典, 常深博, 村上弘志, 信川正順, 信川久実子, 齋藤真梨子, 山内茂雄, 内山秀樹, 山内誠, 廿日出勇, 幸村孝由, 萩野浩一, 小林翔悟, 山岡和貴, 平賀純子

    日本天文学会年会講演予稿集   Vol. 2019   2019

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  15. X線分光撮像衛星XRISM搭載軟X線撮像装置Xtendのフライト用X線CCD素子の性能評価(2):軟X線応答評価

    高木駿亨, 金丸善朗, 佐藤仁, 寺田裕大, 住田知也, 森浩二, 林田清, 冨田洋, 田中孝明, 内田裕之, 天野雄輝, 鶴剛, 中嶋大, 野田博文, 松本浩典, 常深博, 村上弘志, 信川正順, 信川久実子, 齋藤真梨子, 山内茂雄, 内山秀樹, 山内誠, 廿日出勇, 幸村孝由, 萩野浩一, 小林翔悟, 山岡和貴, 平賀純子

    日本天文学会年会講演予稿集   Vol. 2019   2019

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  16. X線衛星「ひとみ」搭載軟ガンマ線検出器(SGD)によるかに星雲のガンマ線偏光観測

    渡辺伸, 渡辺伸, 内田悠介, 内田悠介, 田島宏康, 深沢泰司, 一戸悠人, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 勝田隼一郎, 北口貴雄, 国分紀秀, GOLDWURM A, 斉藤新也, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋忠幸, 高橋弘充, 武田伸一郎, 田中孝明, 田中康之, 寺田幸功, 中澤知洋, 中澤知洋, 中野俊男, 中森健之, 野田博文, 萩野浩一, 林克洋, 林克洋, BLANDFORD R, 牧島一夫, MADEJSKI G, 水野恒史, 森國城, 谷津陽一, 山岡和貴, 湯浅孝行, 米徳大輔, LAURENT P, LIMOUSIN O, LEBRUN F

    日本物理学会講演概要集(CD-ROM)   Vol. 73 ( 1 ) page: ROMBUNNO.25pK307‐5 - 492   2018.3

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    DOI: 10.11316/jpsgaiyo.73.1.0_492

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  17. Proposal for Solar Neutron Observation Satellite

    宮田喜久子, 山岡和貴, 田島宏康

    日本航空宇宙学会中部・関西支部合同秋期大会講演論文集(CD-ROM)   Vol. 55th   2018

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  18. 超小型衛星による,宇宙空間からの太陽中性子の観測

    山岡和貴, 田島宏康, 宮田喜久子, 田村啓輔, 伊藤和也, 稲守孝哉, 高橋弘充

    日本天文学会年会講演予稿集   Vol. 2018   2018

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  19. CALETガンマ線バーストモニター(CGBM)のエネルギー応答関数の開発

    山田祐輔, 坂本貴紀, 吉田篤正, 川久保雄太, 森山光明, 山岡和貴, 中平聡志, 高橋一郎, 石崎渉, 浅野勝晃, 浅岡陽一, 鳥居祥二, 小澤俊介, 清水雄輝, 田村忠久, RICCIARINI Sergio B., CHERRY Michael L., MARROCCHESI Pier S.

    日本天文学会年会講演予稿集   Vol. 2018   2018

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  20. X線天文衛星代替機(XARM)搭載軟X線撮像装置のCCD駆動回路(FE)の開発

    山岡和貴, 林田清, 吉田将之, 平賀純子, 中嶋大, 尾崎正伸, DOTY John P., 松本浩典, 常深博, 内田裕之, 田中孝明, 鶴剛, 森浩二, 山内誠, 廿日出勇, 信川久実子, 村上弘志, 冨田洋, 幸村孝由, 萩野浩一, 小林翔悟, 内山秀樹, 信川正順, 堂谷忠靖

    日本天文学会年会講演予稿集   Vol. 2018   2018

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  21. 「ひとみ(ASTRO‐H)」搭載軟ガンマ線検出器における軌道上バックグラウンドの理解

    大野雅功, 深沢泰司, 水野恒史, 高橋弘充, 北口貴雄, 田中康之, 勝田隼一郎, 河野貴文, 幅田翔, 岡田千穂, 大橋礼恵, 寺前拓人, 田中晃司, 高橋忠幸, 国分紀秀, 渡辺伸, 佐藤悟朗, 太田方之, 内田悠介, 都丸亮太, 米田浩基, 小高裕和, 小高裕和, 中澤知洋, 村上浩章, 田島宏康, 木下将臣, 山岡和貴, 林克洋

    日本天文学会年会講演予稿集   Vol. 2017   page: 246   2017.8

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  22. X線天文衛星「ひとみ」搭載の硬X線撮像検出器(HXI)の軌道上性能

    中澤知洋, 高橋忠幸, 国分紀秀, 渡辺伸, 佐藤悟朗, 太田方之, 萩野浩一, 佐藤理江, LEE Herman, 能町正治, 米徳大輔, 田中孝明, 榎戸輝揚, 寺田幸功, 内山秀樹, 谷津洋一, 一戸悠人, 野田博文, 田島宏康, 山岡和貴, 林克洋, 深沢泰司, 水野恒史, 大野雅功, 高橋弘充, 中森健之, 内山泰伸, 斉藤新也, 牧島一夫, 湯浅孝行, 中野俊男, 片岡淳, LEBRUN Francois, GOLDWURM Andrea, LIMOUSIN Olivier, LAURENT Philippe, MAIER Daniel, 小高裕和

    日本物理学会講演概要集(CD-ROM)   Vol. 71 ( 2 ) page: ROMBUNNO.24aSP‐6 - 370   2016.9

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    DOI: 10.11316/jpsgaiyo.71.2.0_370

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  23. X線衛星「ひとみ(ASTRO‐H)」搭載軟ガンマ線検出器(SGD)の軌道上動作

    渡辺伸, 渡辺伸, 田島宏康, 深沢泰司, 一戸悠人, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 勝田隼一郎, 北口貴雄, 国分紀秀, GOLDWURM Andrea, 斉藤新也, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋忠幸, 高橋弘充, 武田伸一郎, 田中孝明, 田中康之, 寺田幸功, 中澤知洋, 中野俊男, 中森健之, 野田博文, 萩野浩一, 林克洋, 林克洋, BLANDFORD Roger, 牧島一夫, MADEJSKI Grzegorz, 水野恒史, 森國城, 谷津陽一, 山岡和貴, 湯浅孝行, 米徳大輔, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois

    日本物理学会講演概要集(CD-ROM)   Vol. 71 ( 2 ) page: ROMBUNNO.24aSP‐7   2016.9

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  24. X線天文衛星「すざく」搭載広帯域全天モニターWAMによる2005年から2015年までの太陽フレアの観測

    矢部聖也, 田代信, 寺田幸功, 山内誠, 大森法輔, 牧島一夫, 岩切渉, 山岡和貴, 杉田聡司, 深沢泰司, 大野雅功, 河野貴文, 高橋忠幸, 国分紀秀, 中川友進, 浦田裕次, 中澤知洋

    日本天文学会年会講演予稿集   Vol. 2016   page: 96   2016.8

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  25. X線天文衛星「ひとみ(ASTRO‐H)」搭載軟ガンマ線検出器(SGD)の軌道上動作

    深沢泰司, 田島宏康, 渡辺伸, 大野雅功, 勝田隼一郎, 北口貴雄, 高橋弘充, 田中康之, 水野恒史, 林克洋, 山岡和貴, 太田方之, 国分紀秀, 佐藤悟朗, 佐藤理江, 高橋忠幸, 萩野浩一, 森國城, 一戸悠人, 内山秀樹, 内山泰伸, 斉藤新也, 榎戸輝揚, 田中孝明, 小高裕和, BLANDFORD Roger, MADEJSKI Grzegorz, 片岡淳, GOLDWURM Andrea, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois, 武田伸一郎, 寺田幸功, 中澤知洋, 中野俊男, 牧島一夫, 湯浅孝行, 中森健之, 野田博文, 谷津陽一, 米徳大輔

    日本天文学会年会講演予稿集   Vol. 2016   page: 245   2016.8

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  26. In-orbit performance of HXI/SGD BGO active shield onboard Hitomi

    Ohno Masanori, Fukazawa Yasushi, Mizuno Tsunefumi, Takahashi Hiromitsu, Uchida Yuusuke, Sato Rie, Hagino Koichi, Ohta Masayuki, Sato Goro, Watanabe Shin, Kokubun Motohide, Takahashi Tadayuki, Hayashi Katsuhiro, Yamaoka Kazutaka, Tajima Hiroyasu, Murakami Hiroaki, Kobayashi Syogo, Miyake Katsuma, Nakazawa Kazuhiro, Makishima Kazuo, Nakano Toshio, Odaka Hirokazu, Kataoka Jun, Nakamori Takeshi, Yatsu Yoichi, Uchiyama Hideki, Terada Yukikatsu, Yonetoku Daisuke, the HXI/SGD team

    Meeting Abstracts of the Physical Society of Japan   Vol. 71   page: 372 - 372   2016

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    DOI: 10.11316/jpsgaiyo.71.2.0_372

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  27. CALETによる重力波源の電磁波対応天体の探査

    坂本貴紀, 川久保雄太, 吉田篤正, 中平聡志, 浅岡陽一, 鳥居祥二, 竹本翔一, 山口優幸, 森正樹, 山岡和貴

    日本天文学会年会講演予稿集   Vol. 2016   2016

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  28. CALETガンマ線バーストモニタ(CGBM)の初期科学運用

    中平聡志, 坂本貴紀, 吉田篤正, 山岡和貴, 浅岡陽一, 小澤俊介, 鳥居祥二, 清水雄輝, 田村忠久, 高橋一郎, 川久保雄太, 瀬沼一真, 森山光明, 山田祐輔, RICCIARINI Sergio B., CHERRY Michale L., MARROCCHESI Pier S.

    日本天文学会年会講演予稿集   Vol. 2016   2016

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  29. CALETガンマ線バーストモニター(CGBM)によるGRBの観測

    川久保雄太, 坂本貴紀, 吉田篤正, 高橋一郎, 瀬沼一真, 森山光明, 山田祐輔, 山岡和貴, 中平聡志, 浅岡陽一, 小澤俊介, 鳥居祥二, 清水雄輝, 田村忠久, RICCIARINI Sergio B., CHERYY Michael L., MARROCCHESI Pier S.

    日本天文学会年会講演予稿集   Vol. 2016   2016

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  30. CALETガンマ線バーストモニター初期運用における性能評価と較正

    瀬沼一真, 吉田篤正, 坂本貴紀, 高橋一郎, 川久保雄太, 森山光明, 山田祐輔, 山岡和貴, 中平聡志, 浅岡陽一, 小澤俊介, 鳥居祥二, 清水雄輝, 田村忠久, RICCIARINI Sergio B., MARROCCHESI Pier S., CHERRY Michael L.

    日本天文学会年会講演予稿集   Vol. 2016   2016

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  31. ASTRO‐H衛星搭載軟ガンマ線検出器の衛星総合試験における試験結果

    林克洋, 田島宏康, 深沢泰司, 渡辺伸, 渡辺伸, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 国分紀秀, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋忠幸, 高橋弘充, 武田伸一郎, 田代信, 田中孝明, 寺田幸功, 中澤知洋, 中森健之, 原山淳, BLANDFORD Roger, 牧島一夫, MADEJSKI Grzegorz, 水野恒史, 森國城, 谷津陽一, 山岡和貴, 山田真也, 湯浅孝行, 米徳大輔, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois

    日本物理学会講演概要集(CD-ROM)   Vol. 70 ( 2 ) page: ROMBUNNO.25PSJ-3 - 470   2015.9

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    DOI: 10.11316/jpsgaiyo.70.1.0_470

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  32. ASTRO‐H衛星搭載硬X線軟ガンマ線検出器におけるBGOアクティブシールドの応答関数の構築

    大野雅功, 河野貴文, 枝廣育実, 白川裕章, 大橋礼恵, 岡田千穂, 幅田翔, 勝田隼一郎, 田中康之, 高橋弘充, 水野恒史, 深沢泰司, 村上浩章, 小林翔悟, 三宅克馬, 小野光, 室田優紀, 中澤知洋, 牧島一夫, 三村健人, 片岡淳, 一戸悠人, 内田悠介, 桂川美穂, 米田浩基, 武田伸一郎, 佐藤悟朗, 佐藤理江, 川原田円, 原山淳, 小高浩和, 林克洋, 太田方之, 渡辺伸, 国分紀秀, 高橋忠幸, 木下将臣, 山岡和貴, 田島宏康, 谷津陽一

    日本天文学会年会講演予稿集   Vol. 2015   page: 256   2015.8

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  33. ASTRO‐H衛星搭載軟ガンマ線検出器の衛星搭載器試験結果

    田島宏康, 深沢泰司, 渡辺伸, 渡辺伸, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 川原田円, 国分紀秀, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋忠幸, 高橋弘充, 武田伸一郎, 田代信, 田中孝明, 田中康之, 寺田幸功, 中澤知洋, 中森健之, 林克洋, BLANDFORD Roger, 牧島一夫, MADEJSKI Grzegorz, 水野恒史, 森國城, 谷津陽一, 山岡和貴, 山田真也, 湯浅孝行, 米徳大輔, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois

    日本物理学会講演概要集(CD-ROM)   Vol. 70 ( 1 ) page: ROMBUNNO.23PDK-3   2015.3

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  34. ASTRO‐H衛星搭載硬X線撮影検出器(HXI)の現状FMの完成

    中澤知洋, 国分紀秀, 佐藤悟朗, 川原田円, 佐藤理江, 渡辺伸, 高橋忠幸, 太田方之, 小高裕和, 武田伸一郎, 原山淳, 斉藤新也, 湯浅孝行, 谷津陽一, 内山秀樹, 田島宏康, 山岡和貴, 深沢泰司, 水野恒史, 大野雅功, 高橋弘充, 勝田隼一郎, 寺田幸功, 牧島一夫, 片岡淳, 野田博文, 榎戸輝揚, 田中孝明, 内山泰伸, 中森健之, LIMOUSIN Olivier, LAURENT Philippe, LEBRUN Francois, 櫻井壮希, 笹野理, 中野俊男, 小林翔悟, 村上浩章, 小野光, 加藤佑一

    日本天文学会年会講演予稿集   Vol. 2015   page: 262   2015.2

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  35. ASTRO‐H衛星搭載軟ガンマ線検出器(SGD)の搭載品を用いた軌道上環境での動作検証

    枝廣育実, 古井俊也, 河野貴文, 白川裕章, 大野雅功, 高橋弘充, 水野恒史, 田中康之, 深沢泰司, 渡辺伸, 太田方之, 武田伸一郎, 小高裕和, 林克洋, 一戸悠人, 内田悠介, 桂川美穂, 高橋忠幸, 山岡和貴, 木下将臣, 田島宏康, 村上浩章, 中澤知洋, 内山秀樹

    日本天文学会年会講演予稿集   Vol. 2015   page: 263   2015.2

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  36. ASTRO‐H衛星搭載軟ガンマ線検出器(SGD)の搭載品を用いた地上較正試験による性能評価

    内田悠介, 渡辺伸, 太田方之, 武田伸一郎, 林克洋, 小高裕和, 一戸悠人, 桂川美穂, 高橋忠幸, 木下将臣, 田島宏康, 山岡和貴, 河野貴文, 古井俊也, 枝廣育実, 白川裕章, 深沢泰司, 水野恒史, 高橋弘充, 大野雅功, 田中康之, 村上浩章, 中澤知洋, 内山秀樹

    日本天文学会年会講演予稿集   Vol. 2015   page: 264   2015.2

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  37. CALETガンマ線バーストモニター開発の現状報告 5

    瀬沼一真, 吉田篤正, 坂本貴紀, 井上亮太, 川久保雄太, 寺澤俊介, 川原健人, 高橋一郎, 山岡和貴, 中平聡志, 鳥居祥二, 佐野伊彦, 佐藤崇行, 清水雄輝

    日本天文学会年会講演予稿集   Vol. 2015   2015

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  38. 軟ガンマ線検出器環境試験データにおけるフラグ等を用いた動作検証

    幅田翔, 河野貴文, 枝廣育実, 白川裕章, 北口貴雄, 大野雅功, 高橋弘充, 水野恒史, 深澤泰司, 一戸悠人, 内田悠介, 米田浩基, 林克洋, 武田伸一郎, 渡辺伸, 高橋忠幸, 山岡和貴, 田島宏康, 湯浅孝行

    日本天文学会年会講演予稿集   Vol. 2015   2015

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  39. MAXI/GSCとFermi/GBMのX線モニター観測から探るX線連星パルサーの光度とパルス周期変化の関係

    杉崎睦, 三原建弘, 中嶋基樹, 山岡和貴

    日本物理学会講演概要集(CD-ROM)   Vol. 70 ( 1 )   2015

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  40. Status and performance of the CALorimetric Electron Telescope (CALET) on the international space station

    O. Adriani, Y. Akaike, Y. Asaoka, K. Asano, M. G. Bagliesi, G. Bigongiari, W. R. Binns, M. Bongi, J. H. Buckley, A. Cassese, G. Castellini, M. L. Cherry, G. Collazuol, K. Ebisawa, V. di Felice, H. Fuke, T. G. Guzik, T. Hamsa, N. Hasebe, M. Hareyama, K. Hibino, M. Ichimura, K. Ioka, M. H. Israel, A. Javaid, E. Kamioka, K. Kasahara, Y. Katayose, J. Kataoka, R. Kataoka, N. Kawanaka, H. Kitamura, T. Kotani, H. S. Krawczynski, J. F. Krizmanic, A. Kubota, S. Kuramata, T. Lomtadze, P. Maestro, L. Marcelli, P. S. Marrocchesi, J. W. Mitchell, S. Miyake, K. Mizutani, H. M. Motz, A. A. Moiseev, K. Mori, M. Mori, N. Mori, K. Munakata, H. Murakami, Y. E. Nakagawa, S. Nakahira, J. Nishimura, S. Okuno, J. F. Ormes, S. Ozawa, F. Palma, P. Papini, B. F. Rauch, S. Ricciarini, T. Sakamoto, M. Sasaki, M. Shibata, Y. Shimizu, A. Shiomi, R. Sparvoli, P. Spillantini, I. Takahashi, M. Takayanagi, M. Takita, T. Tamura, N. Tateyama, T. Terasawa, H. Tomida, S. Torii, Y. Tunesada, Y. Uchihori, S. Ueno, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, T. Yuda

    Nuclear Physics B - Proceedings Supplements   Vol. 256-257   page: 225 - 232   2014.12

  41. 30aTK-9 Recent Results from MAXI observations

    Negoro H., Ueno S., Tomida H., Nakahira S., Kimura M., Ishikawa M., Nakagawa Y., Mihara T., Sugizaki M., Serino M., Morii M., Matsuoka M., Kawai N., Tsunemi H., Yoshida A., Sakamoto T., Nakajima M., Ueda Y., Tsuboi Y., Yamauchi M., Yamaoka K., the MAXI team

    Meeting abstracts of the Physical Society of Japan   Vol. 69 ( 1 ) page: 134 - 134   2014.3

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  42. ASTRO‐H衛星搭載軟ガンマ線検出器の開発状況

    太田方之, 田島宏康, 深沢泰司, 渡辺伸, 内山秀樹, 内山泰伸, 榎戸輝揚, 大野雅功, 小高裕和, 片岡淳, 川原田円, 国分紀秀, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋弘充, 武田伸一郎, 田代信, 田中孝明, 寺田幸功, 中澤知洋, 中森健之, 野田博文, 林克洋, 原山淳, BLANDFORD Roger, 牧島一夫, MADEJSKI Grzegorz, 水野恒史, 谷津陽一, 山岡和貴, 湯浅孝行, 米徳大輔, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois

    日本物理学会講演概要集   Vol. 69 ( 1 ) page: 129   2014.3

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  43. ASTRO‐H衛星搭載硬X線検出器(HXI)の開発状況

    川原田円, 国分紀秀, 中澤知洋, 佐藤悟朗, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 佐藤理江, 原山淳, 高橋忠幸, 高橋弘充, 武田伸一郎, 田島宏康, 田中孝明, 寺田幸功, 深沢泰司, 牧島一夫, 水野恒史, 谷津陽一, 山岡和貴, 湯浅孝行, 渡辺伸, LIMOUSIN Olivier, LAURENT Philippe, LEBRUN Francois

    日本物理学会講演概要集   Vol. 69 ( 1 ) page: 129   2014.3

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  44. ASTRO‐H衛星搭載硬X線撮像検出器のアクティブシールド機能の検証

    村上浩章, 小林翔悟, 櫻井壮希, 笹野理, 徳田伸矢, 大野雅功, 萩野浩一, 湯浅孝行, 佐藤悟朗, 渡辺伸, 国分紀秀, 中澤知洋, 牧島一夫, 山岡和貴, 田島宏康

    日本物理学会講演概要集   Vol. 69 ( 1 ) page: 128   2014.3

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  45. ASTRO‐H衛星搭載検出器(HXI/SGD)のアクティブシールドBGOユニットフライト品の受け入れ試験

    内山秀樹, 山岡和貴, 田島宏康, 徳田伸矢, 中村竜, 高橋弘充, 大野雅功, 深澤泰司, 笹野理, 村上浩章, 中澤知洋, 牧島一夫, 林克洋, 佐藤理江, 国分紀秀, 片岡淳, 谷津陽一

    日本天文学会年会講演予稿集   Vol. 2014   page: 276   2014.2

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  46. ASTRO‐H衛星搭載硬X線撮像検出器のEnd‐to‐End試験によるアクティブシールドの機能検証

    徳田伸矢, 大野雅功, 高橋弘充, 深澤泰司, 村上浩章, 小林翔悟, 櫻井壮希, 笹野理, 中澤知洋, 牧島一夫, 萩野浩一, 湯浅孝行, 小高裕和, 佐藤理江, 佐藤悟朗, 渡辺伸, 国分紀秀, 高橋忠幸, 山岡和貴, 田島宏康

    日本天文学会年会講演予稿集   Vol. 2014   page: 276   2014.2

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  47. ASTRO‐H衛星搭載硬X線撮像検出器(HXI)の統合試験における半導体両面ストリップ主検出部の応答調査

    小林翔悟, 村上浩章, 笹野理, 櫻井壮希, 中澤知洋, 牧島一夫, 萩野浩一, 湯浅孝行, 小高裕和, 佐藤理恵, 佐藤悟朗, 渡辺伸, 国分紀秀, 高橋忠幸, 徳田伸矢, 大野雅功, 高橋弘充, 深澤泰司, 山岡和貴, 田島宏康

    日本天文学会年会講演予稿集   Vol. 2014   page: 275   2014.2

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  48. ASTRO-H衛星搭載硬X線軟ガンマ線検出器におけるBGOアクティブシールドの開発状況

    大野雅功, 徳田伸矢, 中村竜, 高橋弘充, 深沢泰司, 村上浩章, 小林翔悟, 櫻井壮希, 笹野理, 鳥井俊輔, 中澤和洋, 牧島一夫, 山岡和貴, 田島宏康, 内山秀樹, 佐藤理江, 萩野浩一, 湯浅孝行, 佐藤悟朗, 渡辺伸, 国分紀秀, 高橋忠幸, 森國城, 谷津陽一, 片岡淳, 齋藤龍彦, 吉野将生, 中森健之

    日本物理学会講演概要集   Vol. 69 ( 1 )   2014

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  49. CALETガンマ線バーストモニター(CGBM)開発の現状報告 4

    寺澤俊介, 坂本貴紀, 吉田篤正, 井上亮太, 川久保雄太, 瀬沼一真, 藤岡里英, 高橋一郎, 山岡和貴, 冨田洋, 上野史郎, 中平聡志, 佐野伊彦, 佐藤崇行, 鳥居祥二

    日本天文学会年会講演予稿集   Vol. 2014   2014

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  50. 新天体MAXI J1409-619のMAXIによる発見とSwift,RXTEによる追観測

    山岡和貴, 三原建弘, 杉崎睦, 森井幹雄, 松岡勝, 中島基樹, 根来均, 河合誠之, 中平聡志, 上野史郎, KENNEA Jamie A., KAARET Phil

    日本天文学会年会講演予稿集   Vol. 2014   2014

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  51. MAXI/GSCとFermi/GBMのX線モニター観測から探るX線連星パルサーの光度とスピン周期変化の関係

    杉崎睦, 三原建弘, 中嶋基樹, 山岡和貴

    日本天文学会年会講演予稿集   Vol. 2014   2014

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  52. CALETガンマ線バーストモニターの速報体制及び機上トリガーの最適化

    藤岡里英, 坂本貴紀, 吉田篤正, 井上亮太, 川久保雄太, 寺澤俊介, 瀬沼一真, 高橋一郎, 山岡和貴, 冨田洋, 上野史郎, 中平聡志, 佐野伊彦, 佐藤崇行, 鳥居祥二

    日本天文学会年会講演予稿集   Vol. 2014   2014

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  53. ASTRO‐H衛星搭載硬X線撮像検出器(HXI)の開発の現状

    佐藤悟朗, 国分紀秀, 中澤知洋, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 川原田円, 佐藤理江, 高橋忠幸, 高橋弘充, 武田伸一郎, 田島宏康, 田中孝明, 寺田幸功, 深沢泰司, 牧島一夫, 水野恒史, 谷津陽一, 山岡和貴, 湯浅孝行, 渡辺伸, LIMOUSIN Olivier, LAURENT Philippe, LEBRUN Francois

    日本物理学会講演概要集   Vol. 68 ( 2 ) page: 110   2013.8

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  54. ASTRO‐H衛星搭載軟ガンマ線検出器の衛星搭載品開発

    田島宏康, 深沢泰司, 渡辺伸, 内山秀樹, 内山泰伸, 榎戸輝揚, 太田方之, 大野雅功, 小高裕和, 片岡淳, 川原田円, 国分紀秀, 佐藤悟朗, 佐藤理江, 高橋忠幸, 高橋弘充, 武田伸一郎, 田代信, 田中孝明, 田中康之, 寺田幸功, 中澤知洋, 中森健之, 林克洋, BLANDFORD Roger, 牧島一夫, MADEJSKI Grzegorz, 水野恒史, 森國城, 谷津陽一, 山岡和貴, 山田真也, 湯浅孝行, 米徳大輔, LAURENT Philippe, LIMOUSIN Olivier, LEBRUN Francois

    日本物理学会講演概要集   Vol. 68 ( 2 ) page: 110   2013.8

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  55. すざく衛星搭載広帯域全天モニタによる太陽フレア観測

    大野雅功, 高木勝俊, 河野貴文, 中村竜, 古井俊也, 深沢泰司, 安田哲也, 石田勇介, 上野遥, 杉本樹信, 遠藤輝, 坂本明弘, 丸谷美恵, 寺田幸功, 田代信, 石川真之介, 大森法輔, 秋山満, 山内誠, 山岡和貴, 杉田聡司, 中川友進, 国分紀秀, 高橋忠幸, 岩切渉, 花畑義隆, 浦田裕次, 中澤知洋, 牧島一夫

    日本天文学会年会講演予稿集   Vol. 2013   page: 115   2013.8

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  56. ASTRO‐H衛星搭載型アクティブシールド系の受け入れ試験及び動作検証

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    日本天文学会年会講演予稿集   Vol. 2013   page: 293   2013.8

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  57. 29aBE-2 Constraint on the emission mechanism of short GRBs using its light curve behavior

    Ohno M., Uehara T., Hanabata Y., Kawano T., Takaki K., Nakamura R., Tanaka Y., Fukazawa Y., Tashiro M. S., Yamaoka K., Sugita S., Ohmori N., Suzaku WAM team

    Meeting abstracts of the Physical Society of Japan   Vol. 68 ( 1 ) page: 138 - 138   2013.3

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  58. 次期X線衛星ASTRO‐H搭載BGOシールド部の信号処理ファームウェアの動作検証

    徳田伸矢, 後藤国広, 大野雅功, 高橋弘充, 深沢泰司, 鳥井俊輔, 笹野理, 齋藤龍彦, 渡辺伸, 山岡和貴, 湯浅孝行, 国分紀秀, 米徳大輔, 中澤知洋, 牧島一夫, 田島宏康

    日本物理学会講演概要集   Vol. 68 ( 1 ) page: 134   2013.3

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    J-GLOBAL

  59. CALETガンマ線バーストモニター(CGBM)開発の現状報告 3

    川久保雄太, 井上亮太, 寺澤俊介, 山本龍実, 原拓生, 坂本貴紀, 吉田篤正, 山岡和貴, 中川友進, 森国城, 鳥居祥二, 冨田洋, 上野史郎, 中平聡志

    日本天文学会年会講演予稿集   Vol. 2013   2013

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  60. 低質量X線連星4U1608-52とAql X-1の光度曲線の特徴と降着円盤の状態

    浅井和美, 三原建弘, 松岡勝, 杉崎睦, 芹野素子, 上田佳宏, 中平聡志, 山岡和貴, 根来均

    日本天文学会年会講演予稿集   Vol. 2013   2013

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  61. 「すざく」による活動期のAXP4U0142+614のX線観測

    中川友進, 牧島一夫, 榎戸輝揚, 三原建弘, 杉崎睦, 吉田篤正, 坂本貴紀, 山岡和貴, GANDHI Poshak, 田代信, 森井幹雄, HURLEY Kevin

    日本天文学会年会講演予稿集   Vol. 2013   2013

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  62. X線新星MAXI J1305-704の発見

    森鼻久美子, 中平聡志, 志達めぐみ, 三原建弘, 芹野素子, 杉崎睦, 松岡勝, 山岡和貴, 上田佳宏, 根来均

    日本天文学会年会講演予稿集   Vol. 2013   2013

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  63. MAXI/GSCとSSCによるBH新星MAXI J1910-057の発見と長期モニタ観測

    中平聡志, 根來均, 上田佳宏, 志達めぐみ, 三原建弘, 杉崎睦, 松岡勝, 山岡和貴, 河合誠之

    日本天文学会年会講演予稿集   Vol. 2013   2013

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  64. CALET搭載ガンマ線モニタ(CGBM)の観測性能と速報データ公開

    中平聡志, 冨田洋, 上野史郎, 山岡和貴, 吉田篤正, 坂本貴紀, 川久保雄太, 井上亮太, 寺澤俊介, 瀬沼一真, 藤岡里英, 高橋一郎, 鳥居祥二

    日本天文学会年会講演予稿集   Vol. 2013   2013

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Presentations 27

  1. マイクロクエーサー1E 1740.7–2942のXRISMによる精密X線分光観測 International coauthorship

    山岡和貴

    日本天文学会2026年春季年会  2026.3.5  日本天文学会

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    Event date: 2026.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都産業大学   Country:Japan  

  2. マイクロクエーサーV4641Sgrの25年間のX線長期モニタ観測(II) International coauthorship

    山岡和貴

    日本天文学会2025年秋季年会  2025.9.11  日本天文学会

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    Event date: 2025.9

    Presentation type:Oral presentation (general)  

    Venue:海峡メッセ下関   Country:Japan  

  3. 名古屋大学における宇宙人材育成の取り組みと宇宙環境試験設備の紹介

    山岡和貴

    次世代宇宙産業シーズの創出と宇宙戦略基金ー宇宙分野・非宇宙分野のプレーヤーが融合した研究拠点を目指してー  2025.8.4  名古屋大学 学術研究・産学官連携推進本部

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    Event date: 2025.8

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:名古屋大学東山キャンパス TOIC NAGOYA   Country:Japan  

  4. ブラックホール長年の謎"ジェット現象"の噴出条件を解明 新たな理論モデルとブラックホール観測の進展へ貢献

    山岡和貴(名古屋大学)、川口俊宏(富山大学)

    名古屋大学・富山大学合同記者会見  2025.4.14  名古屋大学 ・富山大学

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    Event date: 2025.4

    Language:Japanese   Presentation type:Media coverage  

    Venue:名古屋大学広報プラザ2階記者会見場  

  5. CALET results after three years on the International Space Station

    Asaoka Y.

    Journal of Physics: Conference Series 

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    Event date: 2020.3

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1088/1742-6596/1468/1/012074

    Scopus

  6. High-redshift gamma-ray burst for unraveling the Dark Ages Mission - HiZ-GUNDAM -

    Yonetoku D.

    Proceedings of SPIE - The International Society for Optical Engineering 

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    Event date: 2020

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1117/12.2560603

    Scopus

  7. Status of X-Ray imaging and spectroscopy mission (XRISM)

    Tashiro M.

    Proceedings of SPIE - The International Society for Optical Engineering 

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    Event date: 2020

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1117/12.2565812

    Scopus

  8. Soft X-ray imager (SXI) for Xtend onboard X-Ray imaging and spectroscopy mission (XRISM)

    Nakajima H.

    Proceedings of SPIE - The International Society for Optical Engineering 

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    Event date: 2020

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1117/12.2560348

    Scopus

  9. Study on possible proton-induced background of LaBr<inf>3</inf>(Ce) scintillator in a low-Earth orbit

    Mizushima T.

    Proceedings of SPIE - The International Society for Optical Engineering 

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    Event date: 2020

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1117/12.2560810

    Scopus

  10. The CALorimetric Electron Telescope (CALET) on the international space station: Results from the first two years on orbit

    Asaoka Y.

    Journal of Physics: Conference Series 

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    Event date: 2019.3

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1088/1742-6596/1181/1/012003

    Scopus

  11. Solar neutron and gamma-ray detector for a 3U Cubesat

    Yamaoka K.

    Proceedings of Science 

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    Event date: 2019

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  12. Space-based solar neutron observations for cubesat project

    Miyata K.

    Proceedings of the International Astronautical Congress, IAC 

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    Event date: 2018

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  13. CALET GBM observations of gamma-ray bursts and gravitational wave sources

    Yamaoka K.

    Proceedings of Science 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  14. Solar neutron and gamma-ray monitor for a small satellite

    Yamaoka K.

    Proceedings of Science 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  15. CALET GBM observations of gamma-ray bursts and gravitational wave sources

    Yamaoka K.

    Proceedings of Science 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.22323/1.301.0614

    Scopus

  16. Solar neutron and gamma-ray monitor for a small satellite

    Yamaoka K.

    Proceedings of Science 

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    Event date: 2017

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.22323/1.301.0239

    Scopus

  17. The hard X-ray imager (HXI) onboard ASTRO-H

    Nakazawa K.

    Proceedings of SPIE - The International Society for Optical Engineering 

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    Event date: 2016

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1117/12.2231176

    Scopus

  18. Status and performance of the CALorimetric Electron Telescope (CALET) on the international space station

    Adriani O.

    Nuclear Physics B - Proceedings Supplements 

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    Event date: 2014.12

    Language:English   Presentation type:Oral presentation (general)  

    DOI: 10.1016/j.nuclphysbps.2014.10.026

    Scopus

  19. CALET Gamma-ray Burst Monitor (CGBM)

    Yamaoka K.

    Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013 

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    Event date: 2013

    Language:English   Presentation type:Oral presentation (general)  

    Scopus

  20. The CALorimetric Electron Telescope (CALET) on the international space station: Results from the first two years on orbit International conference

    Asaoka Y

    Journal of Physics: Conference Series  2019.3.10 

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    Language:English   Presentation type:Oral presentation (general)  

  21. Solar neutron and gamma-ray detector for a 3U Cubesat International conference

    Yamaoka K

    Proceedings of Science  2019 

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    Language:English   Presentation type:Oral presentation (general)  

  22. Status and performance of the CALorimetric Electron Telescope (CALET) on the international space station International conference

    Adriani O

    Nuclear Physics B - Proceedings Supplements  2014.12.1 

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    Language:English   Presentation type:Oral presentation (general)  

  23. Space-based solar neutron observations for cubesat project International conference

    Miyata K

    Proceedings of the International Astronautical Congress, IAC  2018 

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    Language:English   Presentation type:Oral presentation (general)  

  24. Solar neutron and gamma-ray monitor for a small satellite International conference

    Yamaoka K

    Proceedings of Science  2017 

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    Language:English   Presentation type:Oral presentation (general)  

  25. CALET results after three years on the International Space Station International conference

    Asaoka Y

    Journal of Physics: Conference Series  2020.3.20 

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    Language:English   Presentation type:Oral presentation (general)  

  26. CALET GBM observations of gamma-ray bursts and gravitational wave sources International conference

    Yamaoka K

    Proceedings of Science  2017 

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    Language:English   Presentation type:Oral presentation (general)  

  27. CALET Gamma-ray Burst Monitor (CGBM) International conference

    Yamaoka K

    Proceedings of the 33rd International Cosmic Rays Conference, ICRC 2013  2013 

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Research Project for Joint Research, Competitive Funding, etc. 3

  1. 理工連携による、大学発太陽フレア粒子観測用キューブサットの開発

    Grant number:9243  2021.10 - 2023.3

    2021年度第31回自然科学系学術研究助成 

    山岡 和貴

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\3500000 ( Direct Cost: \3500000 )

  2. 月・火星における水探査を目指した革新的中性子・ガンマ線センサの開発

    Grant number:2021M-231  2021.4 - 2023.3

    JKA2021年度小型自動車等機械振興事業 

    山岡 和貴

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\10000000 ( Direct Cost: \10000000 )

  3. 超小型衛星による太陽フレアにおけるイオン加速機構の解明

    2017.9 - 2019.9

    平成29年度研究費助成 

    山岡 和貴

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    Grant type:Competitive

KAKENHI (Grants-in-Aid for Scientific Research) 6

  1. New Generation Gamma-Ray Pointing High-Speed Detector to locate Electron Acceleration region in Lightning Discharges

    Grant number:25K21668  2025.6 - 2029.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Pioneering)

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    Authorship:Coinvestigator(s) 

  2. Live imaging of radioactive tracers in vivo applying CMOS image sensors.

    Grant number:25K22345  2025.6 - 2027.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

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    Authorship:Coinvestigator(s) 

  3. Development of space-based solar neutron observations with micro-satelite

    Grant number:18H03700  2018.4 - 2023.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    Yamaoka Kazutaka

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    Authorship:Principal investigator 

    Grant amount:\44980000 ( Direct Cost: \34600000 、 Indirect Cost:\10380000 )

    In this research, we designed an innovative radiation sensor of about 10 cm cubic that is small, lightweight, and low power consumption to detect neutrons and gamma-rays generated by solar flares and coronal mass ejections, (CMEs) which are explosive phenomena in the Sun, and developed an engineering model for mounting on a microsatellite and demonstrating operation in space. Despite its small size, it is capable of chasing the trajectory of radiation incident in three dimensions, identifying the type of radiation and determining the incident energy and direction. In the future, we will aim to further improve performance and functions and realize demonstrations in space.

  4. Unraveling of radiation mechanisms of gamma-ray bursts with wide-band X and gamma-ray observations mainly focusing on X-ray observations

    Grant number:24684015  2012.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (A)

    Yamaoka Kazutaka, YOSHIDA Atsumasa, SAKAMOTO Takanori, OHMORI Norisuke, YOSHIDA Atsumasa, SAKAMOTO Takanori, OHMORI Norisuke

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    Authorship:Principal investigator 

    Grant amount:\17290000 ( Direct Cost: \13300000 、 Indirect Cost:\3990000 )

    In order to unravel radiation mechanisms of gamma-ray bursts (GRBs) which is one of the biggest explosion in the Universe, we carried out wide-band observations from X-rays to GeV gamma-rays focusing on X-rayu range below 10 keV with MAXI and CALET Gamma-ray Burst Monitor (CGBM) on the International Space Station (ISS) which was successfully launched in August 2015. The CGBM observed 61 GRBs so far (4 GRBs were simultaneously detected by MAXI), and searched for X-ray and gamma-ray counterpart of gravitational wave e\vents. MAXI observed 64 GRB candidates, and more than half of them are classifed to X-ray flashes (XRFs) whose radiations are dominant in X-rays. Furhtermore, we found that there were some weak events with soft X-ray spectrum and no X-ray conterparts found in the Swift follow-up observation. These events might be a new class for transient sources.

  5. Studies of State Transitions in Black Hole Candidates by Collaboration between Magnetohydrodynamic Simulations and X-ray Observations

    Grant number:23340040  2011.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    MATSUMOTO Ryoji, NEGORO Hitoshi, HANAWA Tomoyuki, MACHIDA Mami, HIROSE Shigenobu, OHSUGA Ken, KUBOTA Aya, NAKAMURA Kenji, MATSUMOTO Tomoaki, MIYAJI Shigeki, YAMAOKA Kazutaka, YOKOYAMA Takaaki, NEGORO Hitoshi, HANAWA Tomoyuki, MACHIDA Mami, HIROSE Shigenobu, OHSUGA Ken, KUBOTA Aya, NAKAMURA Kenji, MATSUMOTO Tomoaki, MIYAJI Shigeki, YAMAOKA Kazutaka, YOKOYAMA Takaaki

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid) 

    State transitions of black hole candidates are studied by collaboration between theoretical/simulation studies and X-ray observations. By applying a higher accuracy magnetohydrodynamic code based on the HLLD scheme to hard-to-soft transitions, we found that luminous hard state is maintained by balancing the magnetic energy release and radiative cooling through magnetic reconnection between dynamo fields near the black hole and strong azimuthal fields in the outer disk. We also explained the state transitions observed during a tidal disruption event Swift J1644+57 by radiation hydrodynamic simulations of supercritical accretion onto a supermassive black hole.

  6. The Development of a New X-Ray Optical System Optimized for X-Ray/Gamma-Ray Transients

    Grant number:23340075  2011.4 - 2014.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    KOTANI Taro, YOSHIDA Atsumasa, YAMAOKA Kazutaka, SAKAMOTO Takanori, YOSHIDA Atsumasa, YAMAOKA Kazutaka, SAKAMOTO Takanori

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid) 

    Prototypes of the wide-filed X-ray imaging camera utilizing a hole mask and X-ray CCD camera have been developed and tested. The hole mask consists of a Cu foil with a hole pattern with a minimum pixel size of 35 micrometer processed with a picosecond laser. The prototypes are put in a vacuum chamber and illuminated with X-rays from radio isotopes. The FITS format are used to store image data. The results are published in popular science books as well as in conferences and meetings.

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Media Coverage 3

  1. ブラックホールから「ジェット」…長年のナゾ解けた! 名古屋大学などのグループ、宇宙の進化理解へ

    中日新聞社  2025.5

  2. ブラックホールから出るジェット、名大など噴出条件解明 Newspaper, magazine

    日本経済新聞社  2025.4

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    Author:Other 

  3. ブラックホールから光速ジェット 名大、発生条件を解明 Newspaper, magazine

    日刊工業新聞社  2025.4

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    Author:Other 

Academic Activities 1

  1. 日本天文学会秋季年会コンパクト天体セッション座長

    Role(s):Panel moderator, session chair, etc.

    日本天文学会  2025.9

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    Type:Academic society, research group, etc.