Faculty Profiles - TAJIMA, Hiroyasu

Papers - TAJIMA, Hiroyasu

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Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector Reviewed International coauthorship

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

Design and performance of Soft Gamma-ray Detector onboard the Hitomi (ASTRO-H) satellite Reviewed International coauthorship

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

Fine-Pitch Semiconductor Detector for the FOXSI Mission Reviewed

Ishikawa, S.; Saito, S.; Tajima, H.; Tanaka, T.; Watanabe, S.; Odaka, H.; Fukuyama, T.; Kokubun, M.; Takahashi, T.; Terada, Y.; Krucker, S.; Christe, S.; McBride, S.; Glesener, L.

IEEE Transactions on Nuclear Science Vol. 58 page： 2039-2046 2011.8

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

The Focusing Optics X-ray Solar Imager (FOXSI) is a NASA sounding rocket mission which will study particle acceleration and coronal heating on the Sun through high sensitivity observations in the hard X-ray energy band (5-15 keV). Combining high-resolution focusing X-ray optics and fine-pitch imaging sensors, FOXSI will achieve superior sensitivity; two orders of magnitude better than that of the RHESSI satellite. As the focal plane detector, a Double-sided Si Strip Detector (DSSD) with a front-end ASIC (Application Specific Integrated Circuit) will fulfill the scientific requirements of spatial and energy resolution, low energy threshold and time resolution. We have designed and fabricated a DSSD with a thickness of 500 µm and a dimension of 9.6 mm x 9.6 mm, containing 128 strips with a pitch of 75 µm, which corresponds to 8 arcsec at the focal length of 2 m. We also developed a low-noise ASIC specified to FOXSI. The detector was successfully operated in the laboratory at a temperature of -20 C and with an applied bias voltage of 300 V, and the energy resolution of 430 eV at a 14 keV line was achieved. We also demonstrated fine-pitch imaging successfully by obtaining a shadow image, hence the implementation of scientific requirements was confirmed.

DOI： 10.1109/TNS.2011.2154342

Gamma-Ray Emission from the Shell of Supernova Remnant W44 Revealed by the Fermi LAT Reviewed International coauthorship

Fermi LAT collaboration

Science Vol. 327 page： 1103 2010.2

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

Recent observations of supernova remnants (SNRs) hint that they accelerate cosmic rays to energies close to ~1015 electron volts. However, the nature of the particles that produce the emission remains ambiguous. We report observations of SNR W44 with the Fermi Large Area Telescope at energies between 2 × 10^8 electron volts and 3 ×10^q11 electron volts. The detection of a source with a morphology corresponding to the SNR shell implies that the emission is produced by particles accelerated there. The gamma-ray spectrum is well modeled with emission from protons and nuclei. Its steepening above ~10^9 electron volts provides a probe with which to study how particle acceleration responds to environmental effects such as shock propagation in dense clouds and how accelerated particles are released into interstellar space.

DOI： 10.1126/science.1182787

A limit on the variation of the speed of light arising from quantum gravity effects Reviewed International coauthorship

Fermi LAT/GBM collaborations

Nature Vol. 462 page： 331-334 2009.11

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

A cornerstone of Einstein's special relativity is Lorentz invariance - the postulate that all observers measure exactly the same speed of light in vacuum, independent of photon-energy. While special relativity assumes that there is no fundamental length-scale associated with such invariance, there is a fundamental scale (the Planck scale, lPlanck~1.62×10^-33cm or EPlanck = MPlanck~1.22×10^19GeV/c2), at which quantum effects are expected to strongly affect the nature of space-time. There is great interest in the (not yet validated) idea that Lorentz invariance might break near the Planck scale. A key test of such violation of Lorentz invariance is a possible variation of photon speed with energy. Even a tiny variation in photon speed, when accumulated over cosmological light-travel times, may be revealed by observing sharp features in γ-ray burst (GRB) light-curves. Here we report the detection of emission up to ~31GeV from the distant and short GRB090510. We find no evidence for the violation of Lorentz invariance, and place a lower limit of 1.2EPlanck on the scale of a linear energy dependence (or an inverse wavelength dependence), subject to reasonable assumptions about the emission (equivalently we have an upper limit of lPlanck/1.2 on the length scale of the effect). Our results disfavour quantum-gravity theories in which the quantum nature of space-time on a very small scale linearly alters the speed of light.

DOI： 10.1038/nature08574

The on-orbit calibration of the Fermi Large Area Telescope Reviewed International coauthorship

Fermi LAT collaboration

Astroparticle Physics Vol. 32 page： 193-219 2009.10

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

The Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope began its on-orbit operations on June 23, 2008. Calibrations, defined in a generic sense, correspond to synchronization of trigger signals, optimization of delays for latching data, determination of detector thresholds, gains and responses, evaluation of the perimeter of the South Atlantic Anomaly (SAA), measurements of live time, of absolute time, and internal and spacecraft boresight alignments. Here we describe on-orbit calibration results obtained using known astrophysical sources, galactic cosmic rays, and charge injection into the front-end electronics of each detector. Instrument response functions will be described in a separate publication. This paper demonstrates the stability of calibrations and describes minor changes observed since launch. These results have been used to calibrate the LAT datasets to be publicly released in August 2009.

DOI： 10.1016/j.astropartphys.2009.08.002

Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C Reviewed International coauthorship

Fermi LAT/GBM collaborations

Science Vol. 323 page： 1688-1693 2009.3

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

Gamma-ray bursts (GRBs) are highly energetic explosions signaling the death of massive stars in distant galaxies. The Gamma-ray Burst Monitor and Large Area Telescope onboard the Fermi Observatory together record GRBs over a broad energy range spanning about 7 decades of gamma-ray energy. In September 2008, Fermi observed the exceptionally luminous GRB 080916C, with the largest apparent energy release yet measured. The high-energy gamma rays are observed to start later and persist longer than the lower energy photons. A simple spectral form fits the entire GRB spectrum, providing strong constraints on emission models. The known distance of the burst enables placing lower limits on the bulk Lorentz factor of the outflow and on the quantum gravity mass.

DOI： 10.1126/science.1169101

Detection of RS Oph with LST-1 and modelling of its HE/VHE gamma-ray emission Reviewed International coauthorship

Abe, K.; Abe, S.; Abhishek, A.; Acero, F.; Aguasca-Cabot, A.; Agudo, I.; Alispach, C.; Alvarez Crespo, N.; Ambrosino, D.; Antonelli, L. A.; Aramo, C.; Arbet-Engels, A.; Arcaro, C.; Asano, K.; Aubert, P.; Baktash, A.; Balbo, M.; Bamba, A.; Baquero Larriva, A.; Barres de Almeida, U.; Barrio, J. A.; Barrios Jim√©nez, L.; Batkovic, I.; Baxter, J.; Becerra Gonz√°lez, J.; Bernardini, E.; Bernete, J.; Berti, A.; Bezshyiko, I.; Bhattacharjee, P.; Bigongiari, C.; Bissaldi, E.; Blanch, O.; Bonnoli, G.; Bordas, P.; Borkowski, G.; Brunelli, G.; Bulgarelli, A.; Bunse, M.; Burelli, I.; Burmistrov, L.; Buscemi, M.; Cardillo, M.; Caroff, S.; Carosi, A.; Carrasco, M. S.; Cassol, F.; Castrej√≥n, N.; Cerasole, D.; Ceribella, G.; Chai, Y.; Cheng, K.; Chiavassa, A.; Chikawa, M.; Chon, G.; Chytka, L.; Cicciari, G. M.; Cifuentes, A.; Contreras, J. L.; Cortina, J.; Costantini, H.; Da Vela, P.; Dalchenko, M.; Dazzi, F.; De Angelis, A.; de Bony de Lavergne, M.; De Lotto, B.; de Menezes, R.; Del Burgo, R.; Del Peral, L.; Delgado, C.; Delgado Mengual, J.; della Volpe, D.; Dellaiera, M.; Di Piano, A.; Di Pierro, F.; Di Tria, R.; Di Venere, L.; D√≠az, C.; Dominik, R. M.; Dominis Prester, D.; Donini, A.; Dore, D.; Dorner, D.; Doro, M.; Eisenberger, L.; Els√§sser, D.; Emery, G.; Escudero, J.; Fallah Ramazani, V.; Ferrarotto, F.; Fiasson, A.; Foffano, L.; Freixas Coromina, L.; Fr√∂se, S.; Fukazawa, Y.; Garcia L√≥pez, R.; Gasbarra, C.; Gasparrini, D.; Geyer, D.; Giesbrecht Paiva, J.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinovic, N.; Grau, R.; Green, D.; Green, J.; Gunji, S.; G√ºnther, P.; Hackfeld, J.; Hadasch, D.; Hahn, A.; Hassan, T.; Hayashi, K.; Heckmann, L.; Heller, M.; Herrera Llorente, J.; Hirotani, K.; Hoffmann, D.; Horns, D.; Houles, J.; Hrabovsky, M.; Hrupec, D.; Hui, D.; Iarlori, M.; Imazawa, R.; Inada, T.; Inome, Y.; Inoue, S.; Ioka, K.; Iori, M.; Iuliano, A.; Jahanvi, J.; Jimenez Martinez, I.; Jimenez Quiles, J.; Jurysek, J.; Kagaya, M.; Kalashev, O.; Karas, V.; Katagiri, H.; Kataoka, J.; Kerszberg, D.; Kobayashi, Y.; Kohri, K.; Kong, A.; Kubo, H.; Kushida, J.; Lacave, B.; Lainez, M.; Lamanna, G.; Lamastra, A.; Lemoigne, L.; Linhoff, M.; Longo, F.; L√≥pez-Coto, R.; L√≥pez-Moya, M.; L√≥pez-Oramas, A.; Loporchio, S.; Lorini, A.; Lozano Bahilo, J.; Luciani, H.; Luque-Escamilla, P. L.; Majumdar, P.; Makariev, M.; Mallamaci, M.; Mandat, D.; Manganaro, M.; Manic√≤, G.; Mannheim, K.; Marchesi, S.; Mariotti, M.; Marquez, P.; Marsella, G.; Mart√≠, J.; Martinez, O.; Mart√≠nez, G.; Mart√≠nez, M.; Mas-Aguilar, A.; Maurin, G.; Mazin, D.; M√©ndez-Gallego, J.; Menon, S.; Mestre Guillen, E.; Micanovic, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Mizuno, T.; Molero Gonzalez, M.; Molina, E.; Montaruli, T.; Moralejo, A.; Morcuende, D.; Morselli, A.; Moya, V.; Muraishi, H.; Nagataki, S.; & Nakamori, T.

Astronomy and Astrophysics Vol. 695 page： A152 2025.3

Combined search in dwarf spheroidal galaxies for branon dark matter annihilation signatures with the MAGIC telescopes Reviewed International coauthorship

Abe, S.; Abhir, J.; Abhishek, A.; Acciari, V. A.; Aguasca-Cabot, A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Arbet Engels, A.; Arcaro, C.; Asano, K.; Baack, D.; Babiƒá, A.; Barres de Almeida, U.; Barrio, J. A.; Batkoviƒá, I.; Bautista, A.; Baxter, J.; Becerra Gonz√°lez, J.; Bednarek, W.; Bernardini, E.; Bernete, J.; Berti, A.; Besenrieder, J.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bo≈°njak, ≈Ω.; Bronzini, E.; Burelli, I.; Campoy-Ordaz, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Cerasole, D.; Ceribella, G.; Chai, Y.; Cifuentes, A.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; da Vela, P.; Dazzi, F.; de Angelis, A.; de Lotto, B.; de Menezes, R.; Delgado, J.; Delgado Mendez, C.; di Pierro, F.; di Tria, R.; di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Escudero, J.; Fari√±a, L.; Fattorini, A.; Foffano, L.; Font, L.; Fr√∂se, S.; Fukami, S.; Fukazawa, Y.; Garc√≠a L√≥pez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Gradetzke, T.; Grau, R.; Green, D.; Green, J. G.; G√ºnther, P.; Hadasch, D.; Hahn, A.; Hassan, T.; Heckmann, L.; Herrera Llorente, J.; Hrupec, D.; Imazawa, R.; Ishio, K.; Jim√©nez Mart√≠nez, I.; Jormanainen, J.; Kankkunen, S.; Kayanoki, T.; Kerszberg, D.; Kluge, G. W.; Kobayashi, Y.; Kouch, P. M.; Kubo, H.; Kushida, J.; L√°inez, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; L√≥pez-Coto, R.; L√≥pez-Moya, M.; L√≥pez-Oramas, A.; Loporchio, S.; Lorini, A.; Lyard, E.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Mart√≠nez, M.; Mart√≠nez-Chicharro, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Molero Gonz√°lez, M.; Molina, E.; Mondal, H. A.; Moralejo, A.; Morcuende, D.; Nakamori, T.; Nanci, C.; Neustroev, V.; Nievas Rosillo, M.; Nigro, C.; Nikoliƒá, L.; Nishijima, K.; Njoh Ekoume, T.; Nozaki, S.; Okumura, A.; Otero-Santos, J.; Paiano, S.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Peresano, M.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Prada Moroni, P. G.; Prandini, E.; Principe, G.; Rhode, W.; Rib√≥, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Saturni, F. G.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Sciaccaluga, A.; Silvestri, G.; Sitarek, J.; Sliusar, V.; Spolon, A.; Sobczynska, D.; Stri≈°koviƒá, J.; Strom, D.; Strzys, M.; Suda, Y.; Tajima, H.; Takeishi, R.; Temnikov, P.; Terauchi, K.; Terziƒá, T.; Teshima, M.; Truzzi, S.; Tutone, A.; Ubach, S.; van Scherpenberg, J.; Vazquez Acosta, M.; Ventura, S.; Verna, G.; Viale, I.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Walter, R.; Wersig, F.; Will, M.; Wunderlich, C.; Yamamoto, T.; Gammaldi, V.; & Nieto, D.

Journal of Cosmology and Astroparticle Physics Vol. 2025 ( 3 ) page： 20 2025.3

GRB 221009A: The B.O.A.T. Burst that Shines in Gamma Rays Reviewed International coauthorship

Axelsson, M.; Ajello, M.; Arimoto, M.; Baldini, L.; Ballet, J.; Baring, M. G.; Bartolini, C.; Bastieri, D.; Becerra Gonzalez, J.; Bellazzini, R.; Berenji, B.; Bissaldi, E.; Blandford, R. D.; Bonino, R.; Bruel, P.; Buson, S.; Cameron, R. A.; Caputo, R.; Caraveo, P. A.; Cavazzuti, E.; Cheung, C. C.; Chiaro, G.; Cibrario, N.; Ciprini, S.; Cozzolongo, G.; Cristarella Orestano, P.; Crnogorcevic, M.; Cuoco, A.; Cutini, S.; D'Ammando, F.; De Gaetano, S.; Di Lalla, N.; Dinesh, A.; Di Tria, R.; Di Venere, L.; Dom√≠nguez, A.; Fegan, S. J.; Ferrara, E. C.; Fiori, A.; Franckowiak, A.; Fukazawa, Y.; Funk, S.; Fusco, P.; Galanti, G.; Gargano, F.; Gasbarra, C.; Germani, S.; Giacchino, F.; Giglietto, N.; Giliberti, M.; Gill, R.; Giordano, F.; Giroletti, M.; Granot, J.; Green, D.; Grenier, I. A.; Guiriec, S.; Gustafsson, M.; Hashizume, M.; Hays, E.; Hewitt, J. W.; Horan, D.; Kayanoki, T.; Kuss, M.; Laviron, A.; Li, J.; Liodakis, I.; Longo, F.; Loparco, F.; Lorusso, L.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Maldera, S.; Malyshev, D.; Manfreda, A.; Mart√≠-Devesa, G.; Martinelli, R.; Martinez Castellanos, I.; Mazziotta, M. N.; McEnery, J. E.; Mereu, I.; Meyer, M.; Michelson, P. F.; Mirabal, N.; Mitthumsiri, W.; Mizuno, T.; Monti-Guarnieri, P.; Monzani, M. E.; Morishita, T.; Morselli, A.; Moskalenko, I. V.; Negro, M.; Niwa, R.; Omodei, N.; Orienti, M.; Orlando, E.; Paneque, D.; Panzarini, G.; Persic, M.; Pesce-Rollins, M.; Petrosian, V.; Pillera, R.; Piron, F.; Porter, T. A.; Principe, G.; Racusin, J. L.; Rain√≤, S.; Rando, R.; Rani, B.; Razzano, M.; Razzaque, S.; Reimer, A.; Reimer, O.; Ryde, F.; S√°nchez-Conde, M.; Saz Parkinson, P. M.; Serini, D.; Sgr√≤, C.; Sharma, V.; Siskind, E. J.; Spandre, G.; Spinelli, P.; Suson, D. J.; Tajima, H.; Tak, D.; Thayer, J. B.; Torres, D. F.; Valverde, J.; Zaharijas, G.; Fermi LAT Collaboration, Lesage, S.; Briggs, M. S.; Burns, E.; Bala, S.; Bhat, P. N.; Cleveland, W. H.; Dalessi, S.; de Barra, C.; Gibby, M.; Giles, M. M.; Hamburg, R.; Hristov, B. A.; Kocevski, D.; Hui, C. M.; Mailyan, B.; Malacaria, C.; McBreen, S.; Poolakkil, S.; Roberts, O. J.; Scotton, L.; Veres, P.; von Kienlin, A.; Wilson-Hodge, C. A.; Wood, J.; & Fermi GBM Collaboration

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES Vol. 277 ( 1 ) page： 24 2025.3

Characterization of Markarian 421 during its most violent year: Multiwavelength variability and correlations Reviewed Open Access

Abe K., Abe S., Abhir J., Abhishek A., Acciari V.A., Aguasca-Cabot A., Agudo I., Aniello T., Ansoldi S., Antonelli L.A., Arbet Engels A., Arcaro C., Asano K., Baack D., Babiäa A., Barres De Almeida U., Barrio J.A., Batkoviäa I., Bautista A., Baxter J., Becerra González J., Bednarek W., Bernardini E., Bernete J., Berti A., Besenrieder J., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak , Bronzini E., Burelli I., Campoy-Ordaz A., Carosi R., Carretero-Castrillo M., Castro-Tirado A.J., Cerasole D., Ceribella G., Chai Y., Cifuentes A., Colombo E., Contreras J.L., Cortina J., Covino S., DâÂ€Â™ amico G., DâÂ€Â™ ammando F., DâÂ€Â™ elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., De Menezes R., Delfino M., Delgado J., Delgado Mendez C., Di Pierro F., Di Tria R., Di Venere L., Dominis Prester D., Donini A., Dorner D., Doro M., Eisenberger L., Elsaesser D., Escudero J., Fariña L., Fattorini A., Foffano L., Font L., Fröse S., Fukami S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giesbrecht Paiva J.G., Giglietto N., Giordano F., Gliwny P., Godinoviäa N., Gradetzke T., Grau R., Green D., Green J.G., Günther P., Hadasch D., Hahn A., Hassan T., Heckmann L., Herrera Llorente J., Hrupec D., Imazawa R., Ishio K., Jiménez Martínez I., Jormanainen J., Kankkunen S., Kayanoki T., Kerszberg D.

Astronomy and Astrophysics Vol. 694 2025.2

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

Aims. Mrk 421 was in its most active state around early 2010, which led to the highest TeV gamma-ray flux ever recorded from any active galactic nuclei (AGN).We aim to characterize the multiwavelength behavior during this exceptional year for Mrk 421, and evaluate whether it is consistent with the picture derived with data from other less exceptional years. Methods. We investigated the period from November 5, 2009, (MJD 55140) until July 3, 2010, (MJD 55380) with extensive coverage from very-high-energy (VHE; E > 100 GeV) gamma rays to radio with MAGIC, VERITAS, Fermi-LAT, RXTE, Swift, GASP-WEBT, VLBA, and a variety of additional optical and radio telescopes. We characterized the variability by deriving fractional variabilities as well as power spectral densities (PSDs). In addition, we investigated images of the jet taken with VLBA and the correlation behavior among di_erent energy bands. Results. Mrk 421 was in widely di_erent states of activity throughout the campaign, ranging from a low-emission state to its highest VHE flux ever recorded. We find the strongest variability in X-rays and VHE gamma rays, and PSDs compatible with power-law functions with indices around 1.5. We observe strong correlations between X-rays and VHE gamma rays at zero time lag with varying characteristics depending on the exact energy band. We also report a marginally significant (_3_) positive correlation between high-energy (HE; E > 100 MeV) gamma rays and the ultraviolet band. We detected marginally significant (_3_) correlations between the HE and VHE gamma rays, and between HE gamma rays and the X-ray, that disappear when the large flare in February 2010 is excluded from the correlation study, hence indicating the exceptionality of this flaring event in comparison with the rest of the campaign. The 2010 violent activity of Mrk 421 also yielded the first ejection of features in the VLBA images of the jet of Mrk 421. Yet the large uncertainties in the ejection times of these unprecedented radio features prevent us from firmly associating them to the specific flares recorded during the 2010 campaign. We also show that the collected multi-instrument data are consistent with a scenario where the emission is dominated by two regions, a compact and extended zone, which could be considered as a simplified implementation of an energy-stratified jet as suggested by recent IXPE observations.

DOI： 10.1051/0004-6361/202451624

Scopus

Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020 Reviewed

MAGIC Collaboration , Abe S., Abhir J., Abhishek A., Acciari V.A., Aguasca-Cabot A., Agudo I., Aniello T., Ansoldi S., Antonelli L.A., Arbet Engels A., Arcaro C., Artero M., Asano K., Baack D., Babić A., Barres De Almeida U., Barrio J.A., Batković I., Bautista A., Baxter J., Becerra González J., Bednarek W., Bernardini E., Bernete J., Berti A., Besenrieder J., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak , Bronzini E., Burelli I., Campoy-Ordaz A., Carosi A., Carosi R., Carretero-Castrillo M., Castro-Tirado A.J., Cerasole D., Ceribella G., Chai Y., Cifuentes A., Colombo E., Contreras J.L., Cortina J., Covino S., D'Amico G., D'Elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., De Menezes R., Delfino M., Delgado J., Delgado Mendez C., Di Pierro F., Di Tria R., Di Venere L., Dominis Prester D., Donini A., Dorner D., Doro M., Eisenberger L., Elsaesser D., Escudero J., Fariña L., Fattorini A., Foffano L., Font L., Fröse S., Fukami S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giesbrecht Paiva J.G., Giglietto N., Giordano F., Gliwny P., Gradetzke T., Grau R., Green D., Green J.G., Günther P., Hadasch D., Hahn A., Hassan T., Heckmann L., Herrera Llorente J., Hrupec D., Imazawa R., Ishio K., Jiménez Martínez I., Jormanainen J., Kankkunen S., Kayanoki T., Kerszberg D.

Astronomy and Astrophysics Vol. 694 2025.2

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

Self-repairing graphite protective layer has been discovered as a suitable protective layer in blast furnace (BF) hearth in recent years. In the current study, actual samples of self-repairing graphite protective layer taken from a commercial BF were analyzed in detail. The results revealed that the hot face of graphite protective layer exhibits a distinct white graphite luster, with large areas of graphite adhering to the surface. Along the direction of its formation, the sample displays a striped pattern with alternating layers. The graphite is strip-shaped, it is relatively coarse and unevenly distributed. The coarse graphite runs in the same direction, unlike graphite in molten iron which has no fixed direction in a chaotic state. The formation process of selfrepairing graphite protective layer can be concluded, graphite precipitates at the interface through heterogeneous nucleation. Crystal nuclei often preferentially adhere to the surface of these impurities to form, owing to the fact that the nucleation energy of heterogeneous nucleation is lower than that of homogeneous nucleation. Titanium is discovered during the observation of microscopic morphology of graphite protective layer, graphite protective layer is more robust due to the strengthening effect of titanium. Titanium strengthening mechanism of self-repairing graphite protective layer is summarized, the strengthening mechanism can be divided into four steps. TiC particles are dispersed around graphite, which reduces the difficulty of the orientation of flake graphite growth. The presence of TiC increases the growth rate of crystals. The four steps are cyclically performed, so the self-repairing graphite protective layer can precipitate layer by layer through titanium strengthening mechanism, which serves to protect the carbon brick in BF hearth.

DOI： 10.1051/0004-6361/202451378

Scopus

Cosmic-ray acceleration and escape from supernova remnant W44 as probed by Fermi -LAT and MAGIC Reviewed

Abe S., Abhir J., Abhishek A., Acciari V.A., Aguasca-Cabot A., Agudo I., Aniello T., Ansoldi S., Antonelli L.A., Arbet Engels A., Arcaro C., Asano K., Babić A., Baquero A., Barres De Almeida U., Barrio J.A., Batković I., Bautista A., Baxter J., Becerra González J., Bednarek W., Bernardini E., Bernete J., Berti A., Besenrieder J., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak Z., Bronzini E., Burelli I., Busetto G., Campoy-Ordaz A., Carosi A., Carosi R., Carretero-Castrillo M., Castro-Tirado A.J., Cerasole D., Ceribella G., Chai Y., Chilingarian A., Cifuentes A., Colombo E., Contreras J.L., Cortina J., Covino S., D'amico G., D'elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., De Menezes R., Del Popolo A., Delfino M., Delgado J., Delgado Mendez C., Di Pierro F., Dominis Prester D., Donini A., Dorner D., Doro M., Elsaesser D., Emery G., Escudero J., Fariña L., Fattorini A., Foffano L., Font L., Fröse S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giesbrecht Paiva J.G., Giglietto N., Gliwny P., Godinović N., Gozzini S.R., Gradetzke T., Grau R., Green J.G., Günther P., Hadasch D., Hahn A., Hassan T., Heckmann L., Herrera J., Hrupec D., Hütten M., Imazawa R., Ishio K., Jiménez Martínez I., Jormanainen J., Kayanoki T., Kerszberg D., Kluge G.W., Kobayashi Y.

Astronomy and Astrophysics Vol. 693 2025.1

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

Context. The supernova remnant (SNR) W44 and its surroundings are a prime target for studying the acceleration of cosmic rays (CRs). Several previous studies established an extended gamma-ray emission that is set apart from the radio shell of W44. This emission is thought to originate from escaped high-energy CRs that interact with a surrounding dense molecular cloud complex. Aims. We present a detailed analysis of Fermi-LAT data with an emphasis on the spatial and spectral properties of W44 and its surroundings. We also report the results of the observations performed with the MAGIC telescopes of the northwestern region of W44. Finally, we present an interpretation model to explain the gamma-ray emission of the SNR and its surroundings. Methods. We first performed a detailed spatial analysis of 12 years of Fermi-LAT data at energies above 1 GeV, in order to exploit the better angular resolution, while we set a threshold of 100 MeV for the spectral analysis. We performed a likelihood analysis of 174 hours of MAGIC data above 130 GeV using the spatial information obtained with Fermi-LAT. Results. The combined spectra of Fermi-LAT and MAGIC, extending from 100 MeV to several TeV, were used to derive constraints on the escape of CRs. Using a time-dependent model to describe the particle acceleration and escape from the SNR, we show that the maximum energy of the accelerated particles has to be '40 GeV. However, our gamma-ray data suggest that a small number of lower-energy particles also needs to escape. We propose a novel model, the broken-shock scenario, to account for this effect and explain the gamma-ray emission.

DOI： 10.1051/0004-6361/202449748

Scopus

Broadband multi-wavelength properties of M87 during the 2018 EHT campaign including a very high energy flaring episode Reviewed

Algaba J.C., Baloković M., Chandra S., Cheong W.Y., Cui Y.Z., D'Ammando F., Falcone A.D., Ford N.M., Giroletti M., Goddi C., Gurwell M.A., Hada K., Haggard D., Jorstad S., Kaur A., Kawashima T., Kerby S., Kim J.Y., Kino M., Kravchenko E.V., Lee S.S., Lu R.S., Markoff S., Michail J., Neilsen J., Nowak M.A., Principe G., Ramakrishnan V., Ripperda B., Sasada M., Savchenko S.S., Sheridan C., Akiyama K., Alberdi A., Alef W., Anantua R., Asada K., Azulay R., Bach U., Baczko A.K., Ball D., Bandyopadhyay B., Barrett J., Bauböck M., Benson B.A., Bintley D., Lackburn L., Blundell R., Bouman K.L., Bower G.C., Boyce H., Bremer M., Brissenden R., Britzen S., Broderick A.E., Broguiere D., Bronzwaer T., Bustamante S., Carlstrom J.E., Chael A., Chan C.K., Chang D.O., Chatterjee K., Chatterjee S., Chen M.T., Chen Y., Cheng X., Cho I., Christian P., Conroy N.S., Conway J.E., Crawford T.M., Crew G.B., Cruz-Osorio A., Dahale R., Davelaar J., De Laurentis M., Deane R., Dempsey J., Desvignes G., Dexter J., Dhruv V., Dihingia I.K., Doeleman S.S., Dzib S.A., Eatough R.P., Emami R., Falcke H., Farah J., Fish V.L., Fomalont E., Ford H.A., Foschi M., Fraga-Encinas R., Freeman W.T., Friberg P., Fromm C.M., Fuentes A., Galison P., Gammie C.F.

Astronomy and Astrophysics Vol. 692 2024.12

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

Context. The nearby elliptical galaxy M87 contains one of only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (EHT). In 2018, more than two dozen multi-wavelength (MWL) facilities (from radio to γ-ray energies) took part in the second M87 EHT campaign. Aims. The goal of this extensive MWL campaign was to better understand the physics of the accreting black hole M87∗, the relationship between the inflow and inner jets, and the high-energy particle acceleration. Understanding the complex astrophysics is also a necessary first step towards performing further tests of general relativity. Methods. The MWL campaign took place in April 2018, overlapping with the EHT M87∗ observations. We present a new, contemporaneous spectral energy distribution (SED) ranging from radio to very high-energy (VHE) γ-rays as well as details of the individual observations and light curves. We also conducted phenomenological modelling to investigate the basic source properties. Results. We present the first VHE γ-ray flare from M87 detected since 2010. The flux above 350 GeV more than doubled within a period of ≈36 hours.We find that the X-ray flux is enhanced by about a factor of two compared to 2017, while the radio and millimetre core fluxes are consistent between 2017 and 2018. We detect evidence for a monotonically increasing jet position angle that corresponds to variations in the bright spot of the EHT image. Conclusions. Our results show the value of continued MWL monitoring together with precision imaging for addressing the origins of high-energy particle acceleration. While we cannot currently pinpoint the precise location where such acceleration takes place, the new VHE γ-ray flare already presents a challenge to simple one-zone leptonic emission model approaches, and it emphasises the need for combined image and spectral modelling.

DOI： 10.1051/0004-6361/202450497

Scopus

Periodic Gamma-Ray Modulation of the Blazar PG 1553+113 Confirmed by Fermi-LAT and Multiwavelength Observations Reviewed International coauthorship

Abdollahi, S.; Baldini, L.; Barbiellini, G.; Bellazzini, R.; Berenji, B.; Bissaldi, E.; Blandford, R. D.; Bonino, R.; Bruel, P.; Buson, S.; Cameron, R. A.; Caraveo, P. A.; Casaburo, F.; Cavazzuti, E.; Cheung, C. C.; Chiaro, G.; Ciprini, S.; Cozzolongo, G.; Cristarella Orestano, P.; Cutini, S.; D'Ammando, F.; Di Lalla, N.; Dirirsa, F.; Di Venere, L.; Dom√≠nguez, A.; Fegan, S. J.; Ferrara, E. C.; Fiori, A.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Garrappa, S.; Gasparrini, D.; Germani, S.; Giglietto, N.; Giordano, F.; Giroletti, M.; Green, D.; Grenier, I. A.; Guiriec, S.; Hays, E.; Horan, D.; Kuss, M.; Larsson, S.; Laurenti, M.; Li, J.; Liodakis, I.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Maldera, S.; Malyshev, D.; Manfreda, A.; Marcotulli, L.; Mart√≠-Devesa, G.; Mazziotta, M. N.; Mereu, I.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Negro, M.; Omodei, N.; Orienti, M.; Orlando, E.; Ormes, J. F.; Paneque, D.; Perri, M.; Persic, M.; Pesce-Rollins, M.; Porter, T. A.; Principe, G.; Rain√≤, S.; Rando, R.; Rani, B.; Razzano, M.; Reimer, A.; Reimer, O.; Saz Parkinson, P. M.; Scotton, L.; Serini, D.; Sesana, A.; Sgr√≤, C.; Siskind, E. J.; Spandre, G.; Spinelli, P.; Suson, D. J.; Tajima, H.; Takahashi, M. N.; Tak, D.; Thayer, J. B.; Thompson, D. J.; Torres, D. F.; Valverde, J.; Verrecchia, F.; & Zaharijas, G.

ASTROPHYSICAL JOURNAL Vol. 976 ( 2 ) page： 203 2024.12

CTC and CT5TEA: An advanced multi-channel digitizer and trigger ASIC for imaging atmospheric Cherenkov telescopes Reviewed International coauthorship

Schwab, B.; Zink, A.; Varner, G.; Depaoli, D.; Hinton, J.; Liu, G.; Okumura, A.; Ross, D.; Sch√§fer, J.; Schoorlemmer, H.; Tajima, H.; Vandenbroucke, J.; White, R.; Watson, J. J.; Zorn, J.; & Funk, S.

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 1069 page： 169841 2024.12

Multi-wavelength study of OT 081: broadband modelling of a transitional blazar Reviewed International coauthorship

Abe, H.; Abe, S.; Acciari, V. A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Antonelli, L. A.; Arbet Engels, A.; Arcaro, C.; Artero, M.; Asano, K.; Baack, D.; Babiƒá, A.; Baquero, A.; Barres de Almeida, U.; Batkoviƒá, I.; Baxter, J.; Bernardini, E.; Bernardos, M.; Bernete, J.; Berti, A.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bo≈°njak, ≈Ω.; Burelli, I.; Busetto, G.; Campoy-Ordaz, A.; Carosi, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Chai, Y.; Cifuentes, A.; Cikota, S.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Del Popolo, A.; Delfino, M.; Delgado, J.; Delgado Mendez, C.; Depaoli, D.; Di Pierro, F.; Di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Emery, G.; Escudero, J.; Fari√±a, L.; Fattorini, A.; Foffano, L.; Font, L.; Fukami, S.; Fukazawa, Y.; Garc√≠a L√≥pez, R. J.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Grau, R.; Green, J. G.; Hadasch, D.; Hahn, A.; Heckmann, L.; Herrera, J.; Hrupec, D.; H√ºtten, M.; Imazawa, R.; Inada, T.; Iotov, R.; Ishio, K.; Jim√©nez Mart√≠nez, I.; Jormanainen, J.; Kerszberg, D.; Kluge, G. W.; Kobayashi, Y.; Kubo, H.; Kushida, J.; L√°inez Lez√°un, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Linhoff, L.; Lombardi, S.; Longo, F.; L√≥pez-Moya, M.; L√≥pez-Oramas, A.; Loporchio, S.; Lorini, A.; Machado de Oliveira Fraga, B.; Majumdar, P.; Makariev, M.; Maneva, G.; Mang, N.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Mart√≠nez, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miƒáanoviƒá, S.; Miceli, D.; Miranda, J. M.; Mirzoyan, R.; Molina, E.; Mondal, H. A.; Morcuende, D.; Nanci, C.; Neustroev, V.; Nigro, C.; Nishijima, K.; Njoh Ekoume, T.; Noda, K.; Nozaki, S.; Ohtani, Y.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pavletiƒá, L.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Moroni, P. G. Prada, Prandini, E.; Principe, G.; Priyadarshi, C.; Rhode, W.; Rib√≥, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Schweizer, T.; Sitarek, J.; Spolon, A.; Stamerra, A.; Stri≈°koviƒá, J.; Strom, D.; Suda, Y.; Suriƒá, T.; Suutarinen, S.; Tajima, H.; Takahashi, M.; Takeishi, R.; Tavecchio, F.; Temnikov, P.; Terziƒá, T.; Teshima, M.; Tosti, L.; Truzzi, S.; Ubach, S.; van Scherpenberg, J.; Ventura, S.; Verguilov, V.; Viale, I.; Vigorito, C. F.; Vitale, V.; Walter, R.; Yamamoto, T.; Ait Benkhali, F.; Becherini, Y.; Bi, B.; B√∂ttcher, M.; Bolmont, J.; Brown, A.; Bulik, T.; Casanova, S.; Chand, T.; Chandra, S.; Chibueze, J.; Chibueze, O.; Egberts, K.; & Einecke, S.

Monthly Notices of the Royal Astronomical Society 2024.12

Constraints on VHE gamma-ray emission of flat spectrum radio quasars with the MAGIC telescopes Reviewed International coauthorship

Abe, S.; Abhir, J.; Abhishek, A.; Acciari, V. A.; Aguasca-Cabot, A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Antonelli, L. A.; Arbet Engels, A.; Arcaro, C.; Artero, M.; Asano, K.; Babiƒá, A.; Baquero, A.; Barres de Almeida, U.; Barrio, J. A.; Batkoviƒá, I.; Bautista, A.; Baxter, J.; Becerra Gonz√°lez, J.; Bednarek, W.; Bernardini, E.; Bernete, J.; Berti, A.; Besenrieder, J.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bo≈°njak, ≈Ω.; Bronzini, E.; Burelli, I.; Busetto, G.; Campoy-Ordaz, A.; Carosi, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Cerasole, D.; Ceribella, G.; Chai, Y.; Cifuentes, A.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Ammando, F.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; de Menezes, R.; Del Popolo, A.; Delfino, M.; Delgado, J.; Delgado Mendez, C.; Di Pierro, F.; Di Tria, R.; Di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Emery, G.; Escudero, J.; Fari√±a, L.; Fattorini, A.; Foffano, L.; Font, L.; Fr√∂se, S.; Fukami, S.; Fukazawa, Y.; Garc√≠a L√≥pez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinoviƒá, N.; Gradetzke, T.; Grau, R.; Green, D.; Green, J. G.; G√ºnther, P.; Hadasch, D.; Hahn, A.; Hassan, T.; Heckmann, L.; Herrera, J.; Hrupec, D.; H√ºtten, M.; Imazawa, R.; Ishio, K.; Jim√©nez Mart√≠nez, I.; Jormanainen, J.; Kayanoki, T.; Kerszberg, D.; Kobayashi, Y.; Kouch, P. M.; Kubo, H.; Kushida, J.; L√°inez, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Linhoff, L.; Lombardi, S.; Longo, F.; L√≥pez-Coto, R.; L√≥pez-Moya, M.; L√≥pez-Oramas, A.; Loporchio, S.; Lorini, A.; Lyard, E.; Machado de Oliveira Fraga, B.; Majumdar, P.; Makariev, M.; Maneva, G.; Mang, N.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Mart√≠nez, M.; Mart√≠nez-Chicharro, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Molero Gonz√°lez, M.; Molina, E.; Mondal, H. A.; Moralejo, A.; Morcuende, D.; Nakamori, T.; Nanci, C.; Neustroev, V.; Nickel, L.; Nievas Rosillo, M.; Nigro, C.; Nikoliƒá, L.; Nilsson, K.; Nishijima, K.; Njoh Ekoume, T.; Noda, K.; Nozaki, S.; Ohtani, Y.; Okumura, A.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Peresano, M.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Prada Moroni, P. G.; Prandini, E.; Principe, G.; Priyadarshi, C.; Rhode, W.; Rib√≥, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Schweizer, T.; Sciaccaluga, A.; Silvestri, G.; Sitarek, J.; Sliusar, V.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Stri≈°koviƒá, J.; Strom, D.; Strzys, M.; Suda, Y.; Suutarinen, S.; Tajima, H.; & Takahashi, M.

Monthly Notices of the Royal Astronomical Society Vol. 535 ( 2 ) page： 1484 - 1506 2024.12

Performance evaluation of the high-voltage CMOS active pixel sensor AstroPix for gamma-ray space telescopes Reviewed International coauthorship

Suda, Yusuke, Caputo, Regina, Steinhebel, Amanda L.; Striebig, Nicolas, Jadhav, Manoj, Fukazawa, Yasushi, Hashizume, Masaki, Kierans, Carolyn, Leys, Richard, Metcalfe, Jessica, Negro, Michela, Periƒá, Ivan, Perkins, Jeremy S.; Shin, Taylor, Tajima, Hiroyasu, Violette, Daniel, & Nakano, Norito

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 1068 page： 169762 2024.11

Standardised formats and open-source analysis tools for the MAGIC telescopes data Reviewed International coauthorship

Abe, S.; Abhir, J.; Abhishek, A.; Acciari, V. A.; Aguasca-Cabot, A.; Agudo, I.; Aniello, T.; Ansoldi, S.; Antonelli, L. A.; Arbet Engels, A.; Arcaro, C.; Artero, M.; Asano, K.; Babiƒá, A.; Barres de Almeida, U.; Barrio, J. A.; Batkoviƒá, I.; Bautista, A.; Baxter, J.; Becerra Gonz√°lez, J.; Bednarek, W.; Bernardini, E.; Bernete, J.; Berti, A.; Besenrieder, J.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bo≈°njak, ≈Ω.; Bronzini, E.; Burelli, I.; Busetto, G.; Campoy-Ordaz, A.; Carosi, A.; Carosi, R.; Carretero-Castrillo, M.; Castro-Tirado, A. J.; Cerasole, D.; Ceribella, G.; Chai, Y.; Cifuentes, A.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; de Menezes, R.; Delfino, M.; Delgado, J.; Di Pierro, F.; Di Tria, R.; Di Venere, L.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Escudero, J.; Fari√±a, L.; Fattorini, A.; Foffano, L.; Font, L.; Fr√∂se, S.; Fukami, S.; Fukazawa, Y.; Garc√≠a L√≥pez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giesbrecht Paiva, J. G.; Giglietto, N.; Giordano, F.; Gliwny, P.; Gradetzke, T.; Grau, R.; Green, D.; Green, J. G.; G√ºnther, P.; Hadasch, D.; Hahn, A.; Hassan, T.; Heckmann, L.; Herrera Llorente, J.; Hrupec, D.; H√ºtten, M.; Imazawa, R.; Ishio, K.; Jim√©nez Mart√≠nez, I.; Jormanainen, J.; Kayanoki, T.; Kerszberg, D.; Kluge, G. W.; Kobayashi, Y.; Kouch, P. M.; Kubo, H.; Kushida, J.; L√°inez, M.; Lamastra, A.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; L√≥pez-Coto, R.; L√≥pez-Moya, M.; L√≥pez-Oramas, A.; Loporchio, S.; Lorini, A.; Lyard, E.; Machado de Oliveira Fraga, B.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mangano, S.; Mannheim, K.; Mariotti, M.; Mart√≠nez, M.; Mart√≠nez-Chicharro, M.; Mas-Aguilar, A.; Mazin, D.; Menchiari, S.; Mender, S.; Miceli, D.; Miener, T.; Miranda, J. M.; Mirzoyan, R.; Molero Gonz√°lez, M.; Molina, E.; Mondal, H. A.; Moralejo, A.; Morcuende, D.; Nakamori, T.; Nanci, C.; Neustroev, V.; Nickel, L.; Nievas Rosillo, M.; Nigro, C.; Nikoliƒá, L.; Nishijima, K.; Njoh Ekoume, T.; Noda, K.; Nozaki, S.; Ohtani, Y.; Okumura, A.; Otero-Santos, J.; Paiano, S.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Peresano, M.; Persic, M.; Pihet, M.; Pirola, G.; Podobnik, F.; Prada Moroni, P. G.; Prandini, E.; Principe, G.; Priyadarshi, C.; Rhode, W.; Rib√≥, M.; Rico, J.; Righi, C.; Sahakyan, N.; Saito, T.; Saturni, F. G.; Schmidt, K.; Schmuckermaier, F.; Schubert, J. L.; Schweizer, T.; Sciaccaluga, A.; Silvestri, G.; Sitarek, J.; Sliusar, V.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Stri≈°koviƒá, J.; Strom, D.; Strzys, M.; Suda, Y.; Suutarinen, S.; Tajima, H.; Takahashi, M.; Takeishi, R.; Temnikov, P.; Terauchi, K.; Terziƒá, T.; Teshima, M.; Truzzi, S.; Tutone, A.; Ubach, S.; van Scherpenberg, J.; Vazquez Acosta, M.; & Ventura, S.

Journal of High Energy Astrophysics Vol. 44 page： 266 - 278 2024.11

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