Research field (2):
Solid earth science
, Astronomy
Research theme for competitive and other funds (7):
2020 - 2024 新しい時代の太陽系物質科学:マルチスケールで見た含水小惑星の形成進化過程
2019 - 2024 彗星塵とされてきた宇宙塵は彗星起源なのか?:分析と分光観測からのアプローチ
2020 - 2023 Impact history of our solar system from water on differentiated asteroids
2017 - 2020 Exploring hydrated minerals on asteroids --- AKARI near-infrared asteroid spectroscopic survey
2015 - 2020 Exploration of water and hydrated minerals on asteroids using near infrared spectroscopy
2014 - 2018 High-speed and wide-field survey for trans-Neptunian objects
2000 - 2002 連星中性子星の構造と安定性についての研究
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Papers (148):
Daisuke Kawata, Hajime Kawahara, Naoteru Gouda, Nathan J Secrest, Ryouhei Kano, Hirokazu Kataza, Naoki Isobe, Ryou Ohsawa, Fumihiko Usui, Yoshiyuki Yamada, et al. JASMINE: Near-infrared astrometry and time-series photometry science. Publications of the Astronomical Society of Japan. 2024
K. Arimatsu, K. Tsumura, F. Usui, J. Watanabe. Cloud reflection modelling for impact flashes on Jupiter. A new constraint on the bulk properties of the impact objects. Astronomy & Astrophysics. 2023
Ko Arimatsu, Kohji Tsumura, Fumihiko Usui, Jun-ichi Watanabe. Modelling the optical energy profile of the 2021 October Jupiter impact flash. Monthly Notices of the Royal Astronomical Society. 2023
Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Ryou Ohsawa, Kentaro Asano, Atsushi Nishimura, Kengo Tachibana, Tsubasa Michifuji, Hirokazu Iida, Akira C. Naruse, et al. Development status of TAO/MIMIZUKU: performance test of the near-infrared channel. Proceedings of SPIE, Ground-based and Airborne Instrumentation for Astronomy IX. 2022. 12184
Jin Beniyama, Shigeyuki Sako, Ryou Ohsawa, Satoshi Takita, Naoto Kobayashi, Shin-ichiro Okumura, Seitaro Urakawa, Makoto Yoshikawa, Fumihiko Usui, Fumi Yoshida, et al. Video observations of tiny near-Earth objects with Tomo-e Gozen. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. 2022. 74. 4. 877-903
Near-Infrared Asteroid Spectroscopic Survey with AKARI: Dehydration process of C-complex asteroids revealed by spectral features in 2.7 ?m band
(EPSC-DPS Joint Meeting 2019 2019)
Search for Water on Asteroids with TAO/MIMIZUKU
(Mid-infrared Astronomy --- Past 20 years & Future 20 years 2019)
2000/04 - 2003/03 Japan Society for the Promotion of Science
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Awards (2):
2016/03 - 日本天文学会 第20回 日本天文学会欧文研究報告論文賞 Asteroid Catalog Using AKARI: AKARI/IRC Mid-Infrared Asteroid Survey
2014/07 - 国際天文学連合 小惑星「24984 Usui (1998 KQ42)」命名
Association Membership(s) (5):
International Astronomical Union
, Group of Optical and Infrared Astronomers
, JAPAN GEOSCIENCE UNION
, THE JAPANESE SOCIETY FOR PLANETARY SCIENCES
, THE ASTRONOMICAL SOCIETY OF JAPAN