研究者業績
基本情報
- 所属
- 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 特任准教授
- 学位
- 博士(東京大学)
- J-GLOBAL ID
- 200901062224980497
- researchmap会員ID
- 1000368169
- 外部リンク
研究キーワード
13経歴
4-
2007年10月 - 現在
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2003年10月 - 2007年9月
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2003年3月 - 2003年9月
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2002年4月 - 2003年2月
学歴
3-
1999年4月 - 2002年
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1997年4月 - 1999年3月
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1993年4月 - 1997年3月
委員歴
2-
2017年6月 - 2019年6月
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2013年4月 - 2019年4月
論文
333-
Publications of the Astronomical Society of Japan 2025年4月11日 査読有り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.
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 561 165631-165631 2025年4月
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Nuclear Instruments and Methods in Physics Research A 2025年4月 査読有りThe camera of the Large-Sized Telescopes (LSTs) of the Cherenkov Telescope Array Observatory (CTAO) consists of 1855 pixels that are grouped into 265 high-performance photomultiplier tube (PMT) modules. Each module comprises a seven-light-guide plate, seven PMT units, a slow control board, and a readout board with a trigger board. The requirements for the PMT modules include various aspects, such as photon detection efficiency, dynamic range, buffer depth, and test pulse functionality. We have developed a high-performance PMT module that fulfills all these requirements. Mass-production and quality control (QC) of modules for all four LSTs of the northern CTAO have been completed. Here we report on the technical details of each element of the module and its performance, together with the methods and results of QC measurements....
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2025年3月XRISM/Xtend Transient Search (XTS) detected an X-ray flare from an X-ray source XRISM J1747-2832 located at the Galactic central region on 2025-03-19 TT. The source position is determined to be (R.A., Dec.) = (266.761, -28.538), with a systematic error of & sim; 40 arcsec....
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2025年3月A follow-up XRISM observation has been performed for the new Galactic centre transient MAXI J1744-294 detected by MAXI on January 2, 2025 (ATels #16975 and #16983)....
MISC
251-
2024年2月12日欧州第一回XRISM科学データ解析ワークショップ 開催主催
書籍等出版物
4-
World Scientific Publishing Co. Pte. Ltd., 2019年1月 (ISBN: 9789813270091)
講演・口頭発表等
150所属学協会
9-
2011年2月
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2002年10月
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1998年9月
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1998年9月
共同研究・競争的資金等の研究課題
12-
日本学術振興会 科学研究費助成事業 2021年4月 - 2026年3月
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日本学術振興会 科学研究費助成事業 2020年4月 - 2025年3月
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日本学術振興会 科学研究費助成事業 2018年4月 - 2020年3月
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日本学術振興会 科学研究費助成事業 2015年4月 - 2017年3月
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日本学術振興会 科学研究費助成事業 2011年4月 - 2016年3月