Organization
Graduate School of Science Lecturer
Graduate School
Graduate School of Science
Undergraduate School
School of Science Department of Physics
Title
Lecturer
ISHIBASHI Kazunori Bish
Degree 3
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Ph.D. in Astrophysics （ 1999.11 University of Minnesota at Twin Cities ）
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Master of Science in Astrophysics （ 1998 University of Minnesota at Twin Cities ）
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Bachelor of Science in Astrophysics （ 1994.5 University of Oklahoma, Norman ）
Research Interests 5
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Space-borne Experiment
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Observational Astrophysics
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Stellar Astrophysics
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Astrophysics
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High-Energy Astrophysics
Research Areas 1
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Natural Science / Astronomy / Observational Astrophysics
Current Research Project and SDGs 3
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HST/STIS Observations of Eta Carinae
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IRSF/SIRIUS Monitoring of Eta Carinae
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Stellar Evolution of VY CMa with HST/STIS
Research History 3
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NorthWest Research Associates CoRA Research Associate
2007.2 - 2009.1
Country：United States
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Massachusetts Institute of Technology Chandra X-ray Center Research Scientist
2001.11 - 2007.1
Country：United States
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NASA's Goddard Space Flight Center Code 21 NRC fellow
2000.1 - 2001.10
Country：United States
Notes：National Academy of Science NRC Fellowship
Education 2
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University of Minnesota at Twin Cities Department of Astronomy Astrophysics
1994.8 - 1999.11
Country： United States
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University of Oklahoma，Norman School of Physics and Astronomy Astrophysics
1991.1 - 1994.5
Country： United States
Papers 12
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硬Ｘ線集光偏光計XL-Calibur 気球実験の2024 年フライトへ向けた準備状況
高橋 弘充, ABARR Quin, 青柳 美緒, 朝倉 一統, 粟木 久光, G.BARING Matthew, BOSE Richard, BRAUN Dana, GERONIMO Gianluigi, DOWKONTT Paul, ELLIOT John, 榎戸 輝揚, ERRANDO Manel, 深沢 泰司, 古澤 彰浩, GADSON Thomas, GAU Epharaim, GUARINO Victor, 郡司 修一, 袴田 知宏, 萩原 涼太, HALL Kenny, 花岡 真帆, HARMOM Keon, 服部 憲吾, 林田 清, HEATWOLE L.Scott, HOSSEN Arman, 井出 峻太郎, 今村 竜太, 今里 郁弥, 今澤 遼, 石橋 和紀, 石田 学, 石倉 彩美, 石渡 幸太, KUMAR Iyer Nirmal, 亀谷 紀香, 鴨川 航, FABIAN Kislat, KISS Mozsi, 北口 貴雄, KOTSIFAKIS David, KRAWCZYNSKI Henric, 倉本 春希, LANZI James, LISALDA Lindsey, 前田 良知, 松下 友亮, 眞武 寛人, 松本 浩典, 峯田 大晴, 宮本 明日香, 宮澤 拓也, 水野 恒史, 中庭 望, 野田 博文, 大出 優一, 岡島 崇, 岡崎 貴樹, PASTRANI Izabella, PEARCE Mark, PETERSON Zachary, PURDY Chris, RAUCH Brian, RYDE Felix, 斎藤 芳隆, 阪本 菜月, 佐久間 翔太郎, 佐藤 淳矢, 澤上 拳明, CHRIS Shreeves, GARRY Simburger, CARL Snow, SEAN Spooner, STANA Theodor-Adrian, STUCHLIK David, 鈴木 瞳, 武尾 舞, 玉川 徹, 田村 啓輔, 常深 博, 内田 和海, 内田 悠介, UDINSKI Edward, VINCENT Brett, WEST Andrew, WULF Eric, 米山 友景, 善本 真梨那, XL-Caliburチーム
大気球シンポジウム: 2023年度 2023.10
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Fine structure of the atomic scattering factors near the iridium L-edges International coauthorship
Awaki, H. et al.
Journal of Astronomical Telescopes Instruments and Systems Vol. 8 ( 04 ) 2022.10
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In-orbit performance of the soft X-ray imaging system aboard Hitomi (ASTRO-H)*
Hiroshi Nakajima, Yoshitomo Maeda, Hiroyuki Uchida, Takaaki Tanaka, Hiroshi Tsunemi, Kiyoshi Hayashida, Takeshi G Tsuru, Tadayasu Dotani, Ryo Nagino, Shota Inoue, Masanobu Ozaki, Hiroshi Tomida, Chikara Natsukari, Shutaro Ueda, Koji Mori, Makoto Yamauchi, Isamu Hatsukade, Yusuke Nishioka, Miho Sakata, Tatsuhiko Beppu, Daigo Honda, Masayoshi Nobukawa, Junko S Hiraga, Takayoshi Kohmura, Hiroshi Murakami, Kumiko K Nobukawa, Aya Bamba, John P Doty, Ryo Iizuka, Toshiki Sato, Sho Kurashima, Nozomi Nakaniwa, Ryota Asai, Manadu Ishida, Hideyuki Mori, Yang Soong, Takashi Okajima, Peter Serlemitsos, Yuzuru Tawara, Ikuyuki Mitsuishi, Kazunori Ishibashi, Keisuke Tamura, Takayuki Hayashi, Akihiro Furuzawa, Satoshi Sugita, Takuya Miyazawa, Hisamitsu Awaki, Eric D Miller, Hiroya Yamaguchi
Publications of the Astronomical Society of Japan Vol. 70 ( 2 ) 2018.3
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On-ground calibration of the Hitomi Hard X-ray Telescopes
Hideyuki Mori, Takuya Miyazawa, Hisamitsu Awaki, Hironori Matsumoto, Yasunori Babazaki, Ayako Bandai, Tadatsugu Demoto, Akihiro Furuzawa, Yoshito Haba, Takayuki Hayashi, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Naoki Ishida, Masayuki Itoh, Toshihiro Iwase, Hiroyoshi Kato, Hiroaki Kobayashi, Tatsuro Kosaka, Hideyo Kunieda
Journal of Astronomical Telescopes, Instruments, and Systems Vol. 4 ( 01 ) page： 1 2018.1
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Optical performance of the x-ray telescope for the XL-Calibur experiment International coauthorship
Kamogawa, W. et al.
Proceedings of the SPIE Vol. 12181 2022.8
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The Altered State of η Carinae: HST's Photometric Record 1998-2021 Reviewed International coauthorship
John C. Martin, Kris Davidson, Roberta M. Humphreys, Kazunori Ishibashi
Research Notes of the AAS Vol. 5 ( 8 ) page： 197 - 204 2021.8
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The Altered State of η Carinae: HST's Photometric Record 1998-2021 Reviewed International coauthorship
Martin, John C. ; Davidson, Kris ; Humphreys, Roberta M. ; Ishibashi, Kazunori
Research Notes of the AAS Vol. 5 ( 8 ) page： 197 - 204 2021.8
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The Mass-Loss History of the Red Hypergiant VY CMa Reviewed International coauthorship
Humphreys, R. M., Davidson, K., Richards, A. M. S., Ziurys, L. M., Jones, T., J., Ishibashi, K.
The Astronomical Journal Vol. 161 ( 3 ) page： 10 2021.3
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XL-Calibur: the next-generation balloon-borne hard x-ray polarimeter Reviewed International coauthorship
Maeda, Y. et al.
Journal of Astronomical Telescopes, Instruments, and Systems Vol. 11444 ( 2X ) page： 9 2021.1
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The Unexpected Spectrum of the Innermost Ejecta of the Red Hypergiant VY CMa Reviewed International coauthorship
Humphreys, Roberta M.; Ziurys, L. M.; Bernal, J. J.; Gordon, Michael S.; Helton, L. Andrew; Ishibashi, Kazunori; Jones, Terry J.; Richards, A. M. S.; Vlemmings, Wouter
Astrophysical Journal Letters Vol. 874 ( 2 ) page： 26 - 33 2019.4
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Near-infrared evidence for a sudden temperature increase in Eta Carinae Reviewed International coauthorship
Mehner, A., Ishibashi, K., Whitelock, P. Nagayama, T., Feast, M., van Wyk, F., de Wit, W.-J.
Astronomy and Astrophysics Vol. 564 ( A14 ) page： 9 - 21 2014.4
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Chandra/HETGS Observations of the Capella System: The Primary as a Dominating X-Ray Source Reviewed
Ishibashi, Kazunori; Dewey, Daniel; Huenemoerder, David P.; Testa, Paola
The Astrophysical Journal Vol. 644 ( 2 ) page： 117-120 2006.6
Other research activities 2
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小規模計画XL-Calibur
2022 -
HST Treasury Project: Eta Carinae
2003
Research Project for Joint Research, Competitive Funding, etc. 2
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"Last Call!" Eta Carinae's Spectroscopic Event in 2020 International coauthorship
Grant number：Proposal ID 16176 2020.5
Space Telescope Science Institute Hubble Space Telescope Proposal Cycle 28 Stellar Astrophysics
Davidson, K., Humphreys, R. M., Martin, J. C., Ishibashi, K.
Authorship：Coinvestigator(s)
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The Recent Mass Loss History of the Red Hypergiant CY CMa International coauthorship
Grant number：Proposal ID 15076 2020.5
Space Telescope Science Institute Hubble Space Telescope Proposal Cycle 25 Stellar Astrophysics
Humphreys, R. M., Gordon, M. S., Helton, L. A., Ishibashi, K., Jones, T. J., Khouri, T., Richards, A., Vlemmings, W., Ziurys, L.
Authorship：Coinvestigator(s)
KAKENHI (Grants-in-Aid for Scientific Research) 1
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Investigation of changing stellar wind of Eta Carinae in NIR and UV
Grant number：26400227 2014.4 - 2018.3
Ishibashi Kazunori
Authorship：Principal investigator
Grant amount：\1820000 （ Direct Cost: \1400000 、 Indirect Cost：\420000 ）
Super-massive star Eta Carinae was well-known for its tremendous mass loss rate -- 1/1000th of the solar mass per year -- and its physical mechanism is not understood at all. Then, in early 2000s, it is noted that Eta Car is undergoing rapid changes in its brightness and apparent changes in its massive stellar wind. In this research program, with the use of Hubble Space Telescope (STIS) and IRSF telescope at SAAO, the cause is identified to be a significant reduction in Eta Car's massive stellar wind, roughly by 50% of the reduction merely in 10 years or so.
Media Coverage 1
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気球を追い駆け四千里：気球回収奔走旅記 Promotional material
国立研究開発法人 宇宙航空研究開発機構 宇宙科学研究所 ISASニュース 2022.11