X-Ray Imaging and Spectroscopy Mission

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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Journal
Publications of the Astronomical Society of Japan
Published
2025-03-18
DOI
https://doi.org/10.1093/pasj/psaf023
Citations
35
Primary Topic
Astrophysical Phenomena and Observations
Type
article
Field-Weighted Citation Impact
40.42

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X-Ray Imaging and Spectroscopy Mission

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Publications of the Astronomical Society of Japan
Astrophysical Phenomena and Observations
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X-Ray Imaging and Spectroscopy Mission

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article en
35 citations

Abstract

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.

Publications of the Astronomical Society of JapanVol. 77(Supplement_1)
Kagoshima University (JP), Hiroshima University (JP), University of Geneva (CH), Roche (Switzerland) (CH), University of Miyazaki (JP), Kumamoto Gakuen University (JP), Leiden University (NL), Nihon Fukushi University (JP), Vassar College (US), Lawrence Livermore National Laboratory (US), Shizuoka University (JP), Goddard Space Flight Center (US), Rikkyo University (JP), University of Wisconsin–Madison (US), Waseda University (JP), Nara University of Education (JP), University of Waterloo (CA), Konan University (JP), Tokyo University of Science (JP), Meiji University (JP), Kyoto Sangyo University (JP), Shibaura Institute of Technology (JP), Technion – Israel Institute of Technology (IL), Durham University (GB), Tohoku University (JP), Kanto Gakuin University (JP), Kyoto University (JP), University of Michigan (US), University of Teacher Education Fukuoka (JP), Japan Aerospace Exploration Agency (JP), European Space Agency (FR), Yale Cancer Center (US), Tohoku Gakuin University (JP), Yale University (US), University of Chicago (US), European Space Astronomy Centre (ES), Toneyama National Hospital (JP), Center for Astrophysics Harvard & Smithsonian (US), Fujita Health University Hospital (JP), Institute of Space and Astronautical Science (JP), Astronomical Institute of the Slovak Academy of Sciences (SK), RIKEN Nishina Center (JP), Institut de Recherche en Astrophysique et Planétologie (FR), University of Toyama (JP), Ehime University (JP), Leiden Observatory, European Space Research and Technology Centre (NL), Space Research Organisation Netherlands (NL), Nagoya University (JP), Massachusetts Institute of Technology (US), Saint Mary's University (CA), University of Maryland, College Park (US), Tokyo Metropolitan University (JP), Saitama University (JP), The University of Tokyo (JP), University of Maryland, Baltimore County (US), University of Amsterdam (NL), Kindai University (JP), Chuo University (JP), The University of Osaka (JP), Nara Women's University (JP)
National Aeronautics and Space Administration, European Space Agency, Japan Society for the Promotion of Science, Japan Aerospace Exploration Agency
Openalex Percentile: Top 0%
Astrophysical Phenomena and Observations
40.42
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