Curriculum Vitaes
Profile Information
- Affiliation
- Senior Researcher, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
- Degree
- 博士（理学）(東京大学)
- ORCID ID
https://orcid.org/0000-0001-6366-2608- J-GLOBAL ID
- 200901078920834652
- researchmap Member ID
- 5000019324
Research Areas
2Research History
7-
Apr, 2016 - Sep, 2024
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Oct, 2015 - Mar, 2016
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Apr, 2005 - Sep, 2015
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Apr, 2004 - Mar, 2005
Education
3-
Apr, 1996 - Mar, 1999
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Apr, 1993 - Mar, 1995
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Apr, 1989 - Mar, 1993
Committee Memberships
2-
Apr, 2015 - Present
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Apr, 2009 - Mar, 2015
Awards
2Papers
287-
Discover Life, 55(1), Sep, 2025In space, asteroids have collided with planets and satellites throughout their long history, and many types of organic molecules have been synthesized. In particular, on satellites with gas atmospheres such as titan, a satellite of saturn, asteroid impacts cause hot reactions in a hot gas plume. To investigate the effects of asteroid impacts, simulation experiment has been carried out using a two-stage light-gas gun in nitrogen gas. we used a small polycarbonate bullet to impact on an iron-based target in nitrogen gas at a pressure of 100 kpa and a speed of approximately 7 km/s. As a result, many carbonaceous nanoparticles were produced. By analyzing the produced soot, using a water extraction method, a dabsylation method and a liquid chromatography method, we detected markedly large amounts of amino acids (glycine and alanine). The reaction process in the hot gas plume was considered. Many types of radicals collide with each other in nitrogen gas and the impact provides a suitable environment for the synthesis of amino acids and precursors of amino acids....
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International Journal of Impact Engineering, Aug, 2025
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Journal of Spacecraft and Rockets, (in press), Jul, 2025 Peer-reviewed
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Journal of Space Safety Engineering, Jun, 2025
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International Journal of Impact Engineering, Jun, 2025
Misc.
635-
THe Astrophysical Journal, 717(1,Pt.2) L66-L70, 2010
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Astronomy and Astrophysics, 525(9), 2010
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宇宙利用シンポジウム = Space Utilization Research: Proceedings of Space Utilization Symposium, 25, Mar, 2009第25回宇宙利用シンポジウム(2009年1月14日-15日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス) The Twenty-fifth Space Utilization Symposium (January 14-15, 2009: ISAS/JAXA Sagamihara, Japan) TANPOPO, dandelion, is the name of a grass whose seeds with floss are spread by the wind. We propose the analyses of interplanetary migration of microbes, organic compounds and meteoroids on Japan Experimental Module (JEM) of the International Space Station (ISS). Ultra low-density aerogel will be used to capture micrometeoroid and debris. Particles captured by aerogel will be used for several analyses after the initial inspection of the gel and tracks. Careful analysis of the tracks in the aerogel will provide the size and velocity dependence of debris flux. The particles will be analyzed for mineralogical, organic and microbiological characteristics. Aerogels are ready for production in Japan. Aerogels and trays are space proven. 著者人数: 16人 資料番号: AA0064297070
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宇宙利用シンポジウム, 25th(25) 256-257, Mar, 2009The Twenty-fifth Space Utilization Symposium (January 14-15, 2009: ISAS/JAXA Sagamihara, Japan)Microgravity experiments are important for studies of surface phenomena (e.g., impact cratering, regolith migration and sorting) on the solar system small bodies. We are investigating the method, devices, and sample materials of these experiments. The creation of "Microgravity Geology" is expected.
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法政大学情報メディア教育研究センター研究報告(Web), 22, 2009
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Oct 31, 2008We introduce the Dichroic-Mirror Camera (DMC), an instrument developed at the<br /> University of Tokyo which is capable of performing simultaneous imaging in<br /> fifteen bands. The main feature of the DMC is the dichroic mirrors, which split<br /> incoming light into red and blue components. Combination of dichroic mirrors<br /> split light from the telescope focus into fifteen intermediate-width bands<br /> across 390 -- 950 nm. The fifteen bands of DMC provide measurements of the<br /> object's spectral energy distribution (SED) at fifteen wavelength points.<br /> During May -- June 2007 and March 2008, observing run of the DMC was carried<br /> out at Higashi-Hiroshima Observatory, Japan. We observed several objects i.e.<br /> planets, asteroids, standard stars & star clusters, planetary nebulae,<br /> galaxies, and supernovae. We describe several early scientific results from the<br /> DMC.
Major Presentations
132Professional Memberships
3Research Projects
17-
科学研究費助成事業, 日本学術振興会, Apr, 2024 - Mar, 2028
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Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2026
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科学研究費助成事業 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2024
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科学研究費助成事業 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2024
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Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2020 - Mar, 2023
