H
Hiromichi Soejima
Publications - 14
Citations - 231
Hiromichi Soejima is an academic researcher. The author has contributed to research in topics: Asteroid & Medicine. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.
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Journal ArticleDOI
Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites
Tetsuya Yokoyama,Kazuhide Nagashima,Izumi Nakai,Edward D. Young,Yoshinari Abe,Jérôme Aléon,Conel M. O'd. Alexander,Sachiko Amari,Yuri Amelin,Ken ichi Bajo,Martin Bizzarro,Audrey Bouvier,Richard W. Carlson,Marc Chaussidon,Byeon-Gak Choi,Nicolas Dauphas,Andrew M. Davis,Tommaso Di Rocco,Wataru Fujiya,Ryota Fukai,Ikshu Gautam,Makiko K. Haba,Yuki Hibiya,Hiroshi Hidaka,Hisashi Homma,Peter Hoppe,Gary R. Huss,K. Ichida,Tsuyoshi Iizuka,Trevor Ireland,Akira Ishikawa,Motoo Ito,Shoichi Itoh,Noriyuki Kawasaki,Noriko T. Kita,Kouki Kitajima,Thorsten Kleine,Shintaro Komatani,Alexander N. Krot,Ming-Chang Liu,Yuki Masuda,Kevin D. McKeegan,Mayu Morita,Kazuko Motomura,Frédéric Moynier,Ann N. Nguyen,Larry R. Nittler,M. Onose,Andreas Pack,Changkun Park,Laurette Piani,Liping Qin,Sara S. Russell,Naoya Sakamoto,Maria Schönbächler,Lauren Tafla,Haolan Tang,Kentaro Terada,Yasuko Terada,Tomohiro Usui,Sohei Wada,Meenakshi Wadhwa,Richard J. Walker,Katsuyuki Yamashita,Qing-Zhu Yin,Shigekazu Yoneda,Hiroharu Yui,Ai-Cheng Zhang,Harold C. Connolly,Dante S. Lauretta,Tomoki Nakamura,Hiroshi Naraoka,Takaaki Noguchi,Ryuji Okazaki,Kanako Sakamoto,Hikaru Yabuta,Masanao Abe,Masahiko Arakawa,Atsushi Fujii,Masahiro Hayakawa,Naoyuki Hirata,Naru Hirata,Rie Honda,Chikatoshi Honda,Satoshi Hosoda,Yuichi Iijima,H. 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,Tatsuaki Okada,Chisato Okamoto,Go Ono,M. 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,Yuichi Tsuda,Ryudo Tsukizaki,Koji Wada,Sei-ichiro Watanabe,Manabu Yamada,Tetsuya Yamada,Yukio Yamamoto,Hajime Yano,Yasuhiro Yokota,Keisuke Yoshihara,Makoto Yoshikawa,Kent Yoshikawa,Shizuho Furuya,Kentaro Hatakeda,Tasuku Hayashi,Yuya Hitomi,K. Kumagai,Akiko Miyazaki,Aiko Nakato,M. Nishimura,Hiromichi Soejima,Ayako I. Suzuki,Toru Yada,Daiki Yamamoto,Kasumi Yogata,M. Yoshitake,Shogo Tachibana,Hisayoshi Yurimoto +148 more
TL;DR: The authors measured the mineralogy and bulk chemical and isotopic compositions of Ryugu samples and concluded that the samples mainly consist of secondary materials that were formed by aqueous alteration in a parent body, from which Ryugu later formed.
Journal ArticleDOI
Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples
T. Nakamura,Miho Matsumoto,K. Amano,Yuma Enokido,M. E. Zolensky,Takashi Mikouchi,Hidenori Genda,Satoshi Tanaka,Mikhail Yu. Zolotov,Kosuke Kurosawa,Shigeru Wakita,Ryuki Hyodo,H. Nagano,Daisuke Nakashima,Yoshio Takahashi,Y. Fujioka,Mikio Kikuiri,E. Kagawa,Moe Matsuoka,Adrian J. Brearley,Ayako Tsuchiyama,Masayuki Uesugi,Junya Matsuno,Yuki Kimura,M. Sato,Ralph E. Milliken,Eri Tatsumi,Seiji Sugita,Takahiro Hiroi,Kohei Kitazato,D. Brownlee,David J. Joswiak,M. Takahashi,K. Ninomiya,T. Takahashi,Takahito Osawa,K. Terada,Frank E. Brenker,B. J. Tkalcec,Laszlo Vincze,Rosario Brunetto,A. Aleon-Toppani,Queenie H. S. Chan,Mathieu Roskosz,Jean-Christophe Viennet,PH Beck,E. Ercan Alp,Tatsuhiro Michikami,Yuuya Nagaashi,Tekshi Tsuji,Y Ino,J. I. Espeso Martinez,Andrei Dolocan,Robert J. Bodnar,M. Y. Tanaka,H Yoshida,Kazuko Sugiyama,Ashley J. King,Keisuke Fukushi,Hayato Suga,S. Yamashita,Taku Kawai,K. Inoue,Aiko Nakato,T. Noguchi,Faith Vilas,Amanda R. Hendrix,C. Jaramillo-Correa,Deborah L. Domingue,Gerardo Dominguez,Zack Gainsforth,Cécile Engrand,Jean Duprat,Sarah Russell,E. Bonato,Tetsuro Kawamoto,T. Wada,S Watanabe,Ritsuko Endo,Satomi Enju,Lucie Riu,Stéphane Rubino,Pieter Tack,Shozo Takeshita,Yoshimasa Takeichi,Atushi Takeuchi,Aki Takigawa,Driss Takir,Toshiaki Tanigaki,Akane Taniguchi,K. Tsukamoto,Tatsuo Yagi,Seishi Yamada,K. Yamamoto,Y. Yamashita,Masahiro Yasutake,Kotaro Uesugi,Izumi Umegaki,I. Chiu,Tsuneomi Ishizaki,Shoichi Okumura,Ernesto Palomba,Cedric Pilorget,S.M. Potin,Abdulkareem Alasli,Satoshi Anada,Yuuko Araki,Naoya Sakatani,Clayton Schultz,Oki Sekizawa,Scott D. Sitzman,K Sugiura,Ming-an Sun,Emmanuel Dartois,Ella De Pauw,Z. Dionnet,Zahia Djouadi,Gerald Falkenberg,R. Fujita,Tetsu Fukuma,Ioana R. Gearba,Kenji Hagiya,Michael Y. Hu,T. Kato,T. Kawamura,M Kimura,Michael K. Kubo,Falko Langenhorst,C. Lantz,Barbara Lavina,M. Lindner,J. Zhao,Bart Vekemans,Donia Baklouti,Benjamin Bazi,F Borondics,Sadao Nagasawa,G. Nishiyama,Kazuhiro Nitta,Jérémie Mathurin,T Matsumoto,I. Mitsukawa,H. Miura,A. Miyake,Yoshinobu Miyake,H. Yurimoto,Ryuji Okazaki,H. Yabuta,H. Naraoka,Kimie Sakamoto,S. Tachibana,Harold C. Connolly,Dante S. Lauretta,M. Yoshitake,M. Yoshikawa,K. Yoshikawa,K. Yoshihara,Y. Yokota,Kasumi Yogata,H. Yano,Y. Yamamoto,Daiki Yamamoto,M. Yamada,Tetsuya Yamada,Toru Yada,Koji Wada,Taira Usui,Ryudo Tsukizaki,Fuyuto Terui,H. Takeuchi,Y. Takei,Ayako Iwamae,Hiromichi Soejima,K Shirai,Yuri Shimaki,Hiroki Senshu,Hisashi Sawada,Tomoko Saiki,M. Ozaki,George C Ono,T. Okada,Nobuhiro Ogawa,K. Ogawa,Ryo Noguchi,Hideaki Noda,M. Nishimura,Noriyuki Namiki,Satoru Nakazawa,Tomokatsu Morota,A. Miyazaki,Akira Miura,Yuya Mimasu,K. Matsumoto,K. Kumagai,Toru Kouyama,Soukichi Kikuchi,K. Kawahara,Seiji Kameda,T. Iwata,Y Ishihara,M. Ishiguro,H. Ikeda,Seigo Hosoda,R. Honda,Chikatoshi Honda,Yuya Hitomi,Na. Hirata,T. Hayashi,Masahiro Hayakawa,Kentaro Hatakeda,Shizuho Furuya,Ryota Fukai,Atsushi Fujii,Y. Cho,M. Arakawa,M. Abe,S. Watanabe,Yasunori Tsuda +217 more
TL;DR: In this article , the authors analyzed 17 samples of the carbonaceous asteroid Ryugu and found that carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System.
Journal ArticleDOI
On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective
Eizo Nakamura,Katsura Kobayashi,Ryoji Tanaka,T. Kunihiro,Hiroshi Kitagawa,Christian Potiszil,Tsutomu Ota,Chie Sakaguchi,Masahiro Yamanaka,Dilan M. Ratnayake,Havishk Tripathi,Rajesh Kumar,Maya-Liliana Avramescu,Hidehisa Tsuchida,Yusuke Yachi,Hitoshi Miura,Masanao Abe,Ryota Fukai,Shizuho Furuya,Kentaro Hatakeda,Tasuku Hayashi,Yuya Hitomi,K. Kumagai,Akiko Miyazaki,Aiko Nakato,M. Nishimura,Tatsuaki Okada,Hiromichi Soejima,Seiji Sugita,Ayako I. Suzuki,Tomohiro Usui,Toru Yada,Daiki Yamamoto,Kasumi Yogata,M. Yoshitake,Masahiko Arakawa,Atsushi Fujii,Masahiro Hayakawa,Naoyuki Hirata,Naru Hirata,Rie Honda,Chikatoshi Honda,Satoshi Hosoda,Yuichi Iijima,H. 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,M. 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 +89 more
TL;DR: In this paper , a comprehensive analysis of 16 representative particles returned from the C-type asteroid Ryugu by the Hayabusa2 mission is presented, which is consistent with multi-scale H-C-N isotopic compositions that are compatible with an origin for Ryugu organic matter within both the protosolar nebula and the interstellar medium.
Journal ArticleDOI
A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample
Motoo Ito,Naotaka Tomioka,Masayuki Uesugi,Akira Yamauchi,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,J Malley,K. A. McCain,Nozomi Matsuda,Kevin D. McKeegan,Kaori Hirahara,Akihisa Takeuchi,S. Sekimoto,Ikuya Sakurai,Ikuo Okada,Yuzuru Karouji,Masahiko Arakawa,Atsushi Fujii,Masaki Fujimoto,Masahiro Hayakawa,Naoyuki Hirata,Naru Hirata,Rie Honda,Chikatoshi Honda,Satoshi Hosoda,Yuichi Iijima,H. 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,K. Kumagai,Akiko Miyazaki,M. Nishimura,Hiromichi Soejima,Ayako Iwamae,Daiki Yamamoto,M. Yoshitake,Toru Yada,Masanao Abe,Tomohiro Usui,Sei-ichiro Watanabe,Yuichi Tsuda +101 more
TL;DR: In this article , the results of a detailed bulk and micro-analytical study of pristine Ryugu particles, brought to Earth by the Hayabusa2 spacecraft, were presented, showing an intricate spatial relationship between aliphatic-rich organics and phyllosilicates.
Journal ArticleDOI
Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu
Hiroshi Naraoka,Yu Takano,Jason P. Dworkin,Yasuhiro Oba,Kenji Hamase,Aogu Furusho,Nanako O. Ogawa,Minako Hashiguchi,Kazuhiko Fukushima,Dan Aoki,Ph. Schmitt-Kopplin,José C. Aponte,Eric T. Parker,Daniel P. Glavin,H. L. McLain,Jamie E. Elsila,Heather Graham,John M. Eiler,François-Régis Orthous-Daunay,Cédric Wolters,J. Isa,Véronique Vuitton,Roland Thissen,Saburo Sakai,Toshihiro Yoshimura,Toshiki Koga,Naohiko Ohkouchi,Yoshito Chikaraishi,Haruna Sugahara,Hajime Mita,Yoshihiro Furukawa,Norbert Hertkorn,Alexander Ruf,Hisayoshi Yurimoto,Tomoki Nakamura,Takaaki Noguchi,Ryuji Okazaki,Hikaru Yabuta,Kanako Sakamoto,Shogo Tachibana,Harold C. Connolly,Dante S. Lauretta,Masanao Abe,Toru Yada,M. Nishimura,Kasumi Yogata,Aiko Nakato,M. Yoshitake,Ayako I. Suzuki,Akiko Miyazaki,Shizuho Furuya,Kentaro Hatakeda,Hiromichi Soejima,Yuya Hitomi,K. Kumagai,Tomohiro Usui,Tasuku Hayashi,Daiki Yamamoto,Ryota Fukai,Kohei Kitazato,Seiji Sugita,Noriyuki Namiki,Masahiko Arakawa,H. Ikeda,Masateru Ishiguro,Naru Hirata,Koji Wada,Yoshiaki Ishihara,Rina Noguchi,Tomokatsu Morota,Naoya Sakatani,Koji Matsumoto,Hiroki Senshu,Rie Honda,Eri Tatsumi,Yasuhiro Yokota,Chikatoshi Honda,Tatsuhiro Michikami,Moe Matsuoka,Akira Miura,Hirotomo Noda,Tetsuya Yamada,Keisuke Yoshihara,Kosuke Kawahara,Masanobu Ozaki,Yuichi Iijima,Hajime Yano,Masahiro Hayakawa,Takahiro Iwata,Ryudo Tsukizaki,Hirotaka Sawada,Satoshi Hosoda,Kazunori Ogawa,Chisato Okamoto,Naoyuki Hirata,Kei Shirai,Yuri Shimaki,Manabu Yamada,Tatsuaki Okada,Yukio Yamamoto,Hiroshi Takeuchi,Atsushi Fujii,Yuto Takei,Kent Yoshikawa,Yuya Mimasu,Go Ono,Naoko Ogawa,Shota Kikuchi,Satoru Nakazawa,Fuyuto Terui,Satoshi Tanaka,Takanao Saiki,Makoto Yoshikawa,Sei-ichiro Watanabe,Yuichi Tsuda +114 more
TL;DR: The Hayabusa2 spacecraft collected samples from the surface of the carbonaceous near-Earth asteroid (162173) Ryugu and brought them to Earth by the International Space Station (ISS) as mentioned in this paper .