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Wataru Fujiya
Researcher at Ibaraki University
Publications - 49
Citations - 935
Wataru Fujiya is an academic researcher from Ibaraki University. The author has contributed to research in topics: Chondrite & Meteorite. The author has an hindex of 14, co-authored 36 publications receiving 658 citations. Previous affiliations of Wataru Fujiya include University of Tokyo & Max Planck Society.
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Journal ArticleDOI
Evidence for the late formation of hydrous asteroids from young meteoritic carbonates
TL;DR: It is concluded that hydrous asteroids accreted later than differentiated and metamorphosed asteroids, and the young carbonate age suggests the late onset of aqueous activities in the Solar System.
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Correlated accretion ages and ε54Cr of meteorite parent bodies and the evolution of the solar nebula
Naoji Sugiura,Wataru Fujiya +1 more
TL;DR: In this article, the authors look at the relationship between the value of e54Cr in bulk meteorites and the time (after calcium-aluminum-rich inclusion, CAI) when their parent bodies accreted.
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Mn–Cr ages of dolomites in CI chondrites and the Tagish Lake ungrouped carbonaceous chondrite
TL;DR: In this article, the authors used a matrix-matched carbonate standard to correct the observed Mn/Cr ratios of dolomites in three CI chondrites and an ungrouped C2 chondrite Tagish Lake.
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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
The Importance of Phobos Sample Return for Understanding the Mars-Moon System
Tomohiro Usui,Ken ichi Bajo,Wataru Fujiya,Yoshihiro Furukawa,Mizuho Koike,Yayoi N. Miura,Haruna Sugahara,Shogo Tachibana,Yoshinori Takano,Kiyoshi Kuramoto +9 more
TL;DR: The MMX spacecraft is scheduled to be launched in 2024, orbit both Phobos and Deimos (multiple flybys), and retrieve and return >10 g of Phobos regolith back to Earth in 2029 as discussed by the authors.