太陽系科学研究系

プロフィール

（併任）
　はやぶさ２プロジェクトチーム
　国際宇宙探査センター火星衛星探査機プロジェクトチーム
（兼務）
　関西学院大学大学院理工学研究科客員教授

研究分野

自然科学一般 / 天文学 / 電波天文学、宇宙測地学
自然科学一般 / 宇宙惑星科学 /

論文

A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample

Motoo Ito Naotaka Tomioka Masayuki Uesugi Akira Yamaguchi Naoki Shirai Takuji Ohigashi Ming-Chang Liu Richard C. Greenwood Makoto Kimura Naoya Imae Kentaro Uesugi Aiko Nakato Kasumi Yogata Hayato Yuzawa Yu Kodama Akira Tsuchiyama Masahiro Yasutake Ross Findlay Ian A. Franchi James A. Malley Kaitlyn A. McCain Nozomi Matsuda Kevin D. McKeegan Kaori Hirahara Akihisa Takeuchi Shun Sekimoto Ikuya Sakurai Ikuo Okada Yuzuru Karouji Masahiko Arakawa Atsushi Fujii Masaki Fujimoto Masahiko Hayakawa Naoyuki Hirata Naru Hirata Rie Honda Chikatoshi Honda Satoshi Hosoda Yu-ichi Iijima Hitoshi Ikeda Masateru Ishiguro Yoshiaki Ishihara Takahiro Iwata Kosuke Kawahara Shota Kikuchi Kohei Kitazato Koji Matsumoto Moe Matsuoka Tatsuhiro Michikami Yuya Mimasu Akira Miura Osamu Mori Tomokatsu Morota Satoru Nakazawa Noriyuki Namiki Hirotomo Noda Rina Noguchi Naoko Ogawa Kazunori Ogawa Tatsuaki Okada Chisato Okamoto Go Ono Masanobu Ozaki Takanao Saiki Naoya Sakatani Hirotaka Sawada Hiroki Senshu Yuri Shimaki Kei Shirai Seiji Sugita Yuto Takei Hiroshi Takeuchi Satoshi Tanaka Eri Tatsumi Fuyuto Terui Ryudo Tsukizaki Koji Wada Manabu Yamada Tetsuya Yamada Yukio Yamamoto Hajime Yano Yasuhiro Yokota Keisuke Yoshihara Makoto Yoshikawa Kent Yoshikawa Ryota Fukai Shizuho Furuya Kentaro Hatakeda Tasuku Hayashi Yuya Hitomi Kazuya Kumagai Akiko Miyazaki Masahiro Nishimura Hiromichi Soejima Ayako Iwamae Daiki Yamamoto Miwa Yoshitake Toru Yada Masanao Abe Tomohiro Usui Sei-ichiro Watanabe Yuichi Tsuda

Nature Astronomy 6(10) 1163-1171 2022年8月 [査読有り]

Abstract

Volatile and organic-rich C-type asteroids may have been one of the main sources of Earth’s water. Our best insight into their chemistry is currently provided by carbonaceous chondritic meteorites, but the meteorite record is biased: onl...

NIRS3 spectral analysis of the artificial Omusubi-Kororin crater on Ryugu

A. Galiano E. Palomba F. Dirri A. Longobardo K. Kitazato T. Iwata M. Matsuoka T. Hiroi D. Takir T. Nakamura M. Abe M. Ohtake S. Matsuura S. Watanabe M. Yoshikawa T. Saiki S. Tanaka T. Okada Y. Yamamoto Y. Takei K. Shirai N. Hirata K. Matsumoto Y. Tsuda

Monthly Notices of the Royal Astronomical Society 514(4) 6173-6182 2022年8月 [査読有り]

The JAXA Hayabusa2 mission accomplished the formation of an artificial crater on the asteroid Ryugu. The aim of this work is to analyse the area surrounding the artificial crater and reveal spectral variability compared to the same region before t...

On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective

Eizo NAKAMURA Katsura KOBAYASHI Ryoji TANAKA Tak KUNIHIRO Hiroshi KITAGAWA Christian POTISZIL Tsutomu OTA Chie SAKAGUCHI Masahiro YAMANAKA Dilan M. RATNAYAKE Havishk TRIPATHI Rahul KUMAR Maya-Liliana AVRAMESCU Hidehisa TSUCHIDA Yusuke YACHI Hitoshi MIURA Masanao ABE Ryota FUKAI Shizuho FURUYA Kentaro HATAKEDA Tasuku HAYASHI Yuya HITOMI Kazuya KUMAGAI Akiko MIYAZAKI Aiko NAKATO Masahiro NISHIMURA Tatsuaki OKADA Hiromichi SOEJIMA Seiji SUGITA Ayako SUZUKI Tomohiro USUI Toru YADA Daiki YAMAMOTO Kasumi YOGATA Miwa YOSHITAKE Masahiko ARAKAWA Atsushi FUJII Masahiko HAYAKAWA Naoyuki HIRATA Naru HIRATA Rie HONDA Chikatoshi HONDA Satoshi HOSODA Yu-ichi IIJIMA Hitoshi IKEDA Masateru ISHIGURO Yoshiaki ISHIHARA Takahiro IWATA Kosuke KAWAHARA Shota KIKUCHI Kohei KITAZATO Koji MATSUMOTO Moe MATSUOKA Tatsuhiro MICHIKAMI Yuya MIMASU Akira MIURA Tomokatsu MOROTA Satoru NAKAZAWA Noriyuki NAMIKI Hirotomo NODA Rina NOGUCHI Naoko OGAWA Kazunori OGAWA Chisato OKAMOTO Go ONO Masanobu OZAKI Takanao SAIKI Naoya SAKATANI Hirotaka SAWADA Hiroki SENSHU Yuri SHIMAKI Kei SHIRAI Yuto TAKEI Hiroshi TAKEUCHI Satoshi TANAKA Eri TATSUMI Fuyuto TERUI Ryudo TSUKIZAKI Koji WADA Manabu YAMADA Tetsuya YAMADA Yukio YAMAMOTO Hajime YANO Yasuhiro YOKOTA Keisuke YOSHIHARA Makoto YOSHIKAWA Kent YOSHIKAWA Masaki FUJIMOTO Sei-ichiro WATANABE Yuichi TSUDA

Proceedings of the Japan Academy, Series B 98(6) 227-282 2022年6月

Site selection for the Hayabusa2 artificial cratering and subsurface material sampling on Ryugu

Shota Kikuchi Sei-ichiro Watanabe Koji Wada Takanao Saiki Hikaru Yabuta Seiji Sugita Masanao Abe Masahiko Arakawa Yuichiro Cho Masahiko Hayakawa Naoyuki Hirata Naru Hirata Chikatoshi Honda Rie Honda Ko Ishibashi Yoshiaki Ishihara Takahiro Iwata Toshihiko Kadono Shingo Kameda Kohei Kitazato Toru Kouyama Koji Matsumoto Moe Matsuoka Tatsuhiro Michikami Yuya Mimasu Akira Miura Tomokatsu Morota Tomoki Nakamura Satoru Nakazawa Noriyuki Namiki Rina Noguchi Kazunori Ogawa Naoko Ogawa Tatsuaki Okada Go Ono Naoya Sakatani Hirotaka Sawada Hiroki Senshu Yuri Shimaki Kei Shirai Shogo Tachibana Yuto Takei Satoshi Tanaka Eri Tatsumi Fuyuto Terui Manabu Yamada Yukio Yamamoto Yasuhiro Yokota Kent Yoshikawa Makoto Yoshikawa Yuichi Tsuda

Planetary and Space Science 219 105519-105519 2022年6月 [査読有り]

Kilometer-scale crater size-frequency distributions on Ceres

Kosei Toyokawa Junichi Haruyama Naoyuki Hirata Sayuri Tanaka Takahiro Iwata

Icarus 377 114909-114909 2022年5月 [査読有り]

This paper presents an investigation of the size-frequency distribution (SFD) of sub-kilometer-sized projectiles in the Main Belt based on the crater distribution on Ceres. Using image data of 35 m/pixel obtained by the Dawn mission with an onboar...