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Article Dans Une Revue Science Advances Année : 2022

Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2

Noriyuki Kawasaki , Kazuhide Nagashima , Naoya Sakamoto , Toru Matsumoto , Ken-Ichi Bajo , Sohei Wada , Yohei Igami , Akira Miyake , Takaaki Noguchi , Daiki Yamamoto , Sara Russell , Yoshinari Abe , Jérôme Aléon , Conel M. O’d. Alexander , Sachiko Amari , Yuri Amelin , Martin Bizzarro , Audrey Bouvier , Richard Carlson , Marc Chaussidon , Byeon-Gak Choi , Nicolas Dauphas , Andrew Davis , Tommaso Di Rocco , Wataru Fujiya , Ryota Fukai , Ikshu Gautam , Makiko Haba , Yuki Hibiya , Hiroshi Hidaka , Hisashi Homma , Peter Hoppe , Gary Huss , Kiyohiro Ichida , Tsuyoshi Iizuka , Trevor Ireland , Akira Ishikawa , Motoo Ito , Shoichi Itoh , Noriko Kita , Kouki Kitajima , Thorsten Kleine , Shintaro Komatani , Alexander Krot , Ming-Chang Liu , Yuki Masuda , Kevin Mckeegan , Mayu Morita , Kazuko Motomura , Frédéric Moynier (1) , Izumi Nakai , Ann Nguyen , Larry Nittler , Morihiko Onose , Andreas Pack , Changkun Park , Laurette Piani , Liping Qin , Maria Schönbächler , Lauren Tafla , Haolan Tang , Kentaro Terada , Yasuko Terada , Tomohiro Usui , Meenakshi Wadhwa , Richard Walker , Katsuyuki Yamashita , Qing-Zhu Yin , Tetsuya Yokoyama , Shigekazu Yoneda , Edward Young , Hiroharu Yui , Ai-Cheng Zhang , Tomoki Nakamura , Hiroshi Naraoka , Ryuji Okazaki , Kanako Sakamoto , Hikaru Yabuta , Masanao Abe , Akiko Miyazaki , Aiko Nakato , Masahiro Nishimura , Tatsuaki Okada , Toru Yada , Kasumi Yogata , Satoru Nakazawa , Takanao Saiki , Satoshi Tanaka , Fuyuto Terui , Yuichi Tsuda , Sei-Ichiro Watanabe , Makoto Yoshikawa , Shogo Tachibana , Hisayoshi Yurimoto
Noriyuki Kawasaki
Kazuhide Nagashima
Naoya Sakamoto
Toru Matsumoto
Ken-Ichi Bajo
Sohei Wada
Yohei Igami
Akira Miyake
Takaaki Noguchi
Daiki Yamamoto
  • Fonction : Auteur
Sara Russell
Yoshinari Abe
Jérôme Aléon
Conel M. O’d. Alexander
Sachiko Amari
Yuri Amelin
Martin Bizzarro
Audrey Bouvier
Richard Carlson
Marc Chaussidon
Byeon-Gak Choi
Nicolas Dauphas
Andrew Davis
Tommaso Di Rocco
Wataru Fujiya
Ryota Fukai
Ikshu Gautam
Makiko Haba
Yuki Hibiya
Hiroshi Hidaka
Hisashi Homma
Peter Hoppe
Gary Huss
Kiyohiro Ichida
Tsuyoshi Iizuka
Trevor Ireland
Akira Ishikawa
Motoo Ito
Shoichi Itoh
Noriko Kita
Kouki Kitajima
Thorsten Kleine
Shintaro Komatani
Alexander Krot
Ming-Chang Liu
Yuki Masuda
Kevin Mckeegan
Mayu Morita
Kazuko Motomura
Izumi Nakai
Ann Nguyen
Larry Nittler
Morihiko Onose
Andreas Pack
Changkun Park
Laurette Piani
Liping Qin
  • Fonction : Auteur
Maria Schönbächler
Lauren Tafla
  • Fonction : Auteur
Haolan Tang
  • Fonction : Auteur
Kentaro Terada
Yasuko Terada
Tomohiro Usui
Meenakshi Wadhwa
Richard Walker
Katsuyuki Yamashita
Qing-Zhu Yin
Tetsuya Yokoyama
Shigekazu Yoneda
Edward Young
Hiroharu Yui
Ai-Cheng Zhang
Tomoki Nakamura
Hiroshi Naraoka
Ryuji Okazaki
Kanako Sakamoto
Hikaru Yabuta
Masanao Abe
Akiko Miyazaki
Aiko Nakato
Masahiro Nishimura
Tatsuaki Okada
Toru Yada
Kasumi Yogata
Satoru Nakazawa
Takanao Saiki
Satoshi Tanaka
Fuyuto Terui
Yuichi Tsuda
Sei-Ichiro Watanabe
Makoto Yoshikawa
Shogo Tachibana
Hisayoshi Yurimoto

Résumé

The extraterrestrial materials returned from asteroid (162173) Ryugu consist predominantly of low-temperature aqueously formed secondary minerals and are chemically and mineralogically similar to CI (Ivuna-type) carbonaceous chondrites. Here, we show that high-temperature anhydrous primary minerals in Ryugu and CI chondrites exhibit a bimodal distribution of oxygen isotopic compositions: 16 O-rich (associated with refractory inclusions) and 16 O-poor (associated with chondrules). Both the 16 O-rich and 16 O-poor minerals probably formed in the inner solar protoplanetary disk and were subsequently transported outward. The abundance ratios of the 16 O-rich to 16 O-poor minerals in Ryugu and CI chondrites are higher than in other carbonaceous chondrite groups but are similar to that of comet 81P/Wild2, suggesting that Ryugu and CI chondrites accreted in the outer Solar System closer to the accretion region of comets.
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hal-03935980 , version 1 (19-01-2023)

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Paternité - Pas d'utilisation commerciale

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Noriyuki Kawasaki, Kazuhide Nagashima, Naoya Sakamoto, Toru Matsumoto, Ken-Ichi Bajo, et al.. Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2. Science Advances , 2022, 8 (50), ⟨10.1126/sciadv.ade2067⟩. ⟨hal-03935980⟩
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