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Journal Articles The Astrophysical journal letters Year : 2022

Presolar Stardust in Asteroid Ryugu

Jens Barosch , Larry R. Nittler , Jianhua Wang , Conel M. O'D. Alexander , Bradley T. de Gregorio , Cecile Engrand (1) , Yoko Kebukawa , Kazuhide Nagashima , Rhonda M. Stroud , Hikaru Yabuta , Yoshinari Abe , Jérôme Aléon (2) , Sachiko Amari , Yuri Amelin , Ken-Ichi Bajo , Laure Bejach (1) , Martin Bizzarro , Lydie Bonal (3) , Audrey Bouvier , Richard W. Carlson , Marc Chaussidon (4) , Byeon-Gak Choi , George D. Cody , Emmanuel Dartois (5) , Nicolas Dauphas , Andrew M. Davis , Alexandre Dazzi (6) , Ariane Deniset-Besseau (6) , Tommaso Di Rocco , Jean Duprat (2) , Wataru Fujiya , Ryota Fukai , Ikshu Gautam , Makiko K. Haba , Minako Hashiguchi , Yuki Hibiya , Hiroshi Hidaka , Hisashi Homma , Peter Hoppe , Gary R. Huss , Kiyohiro Ichida , Tsuyoshi Iizuka , Trevor R. Ireland , Akira Ishikawa , Motoo Ito , Shoichi Itoh , Kanami Kamide , Noriyuki Kawasaki , A. L. David Kilcoyne , Noriko T. Kita , Kouki Kitajima , Thorsten Kleine , Shintaro Komatani , Mutsumi Komatsu , Alexander N. Krot , Ming-Chang Liu , Zita Martins , Yuki Masuda , Jérémie Mathurin (6) , Kevin D. Mckeegan , Gilles Montagnac (7) , Mayu Morita , Smail Mostefaoui (2) , Kazuko Motomura , Frédéric Moynier (4) , Izumi Nakai , Ann N. Nguyen , Takuji Ohigashi , Taiga Okumura , Morihiko Onose , Andreas Pack , Changkun Park , Laurette Piani (8) , Liping Qin , Eric Quirico (3) , Laurent Remusat (2) , Sara S. Russell , Naoya Sakamoto , Scott A. Sandford , Maria Schönbächler , Miho Shigenaka , Hiroki Suga , Lauren Tafla , Yoshio Takahashi , Yasuo Takeichi , Yusuke Tamenori , Haolan Tang , Kentaro Terada , Yasuko Terada , Tomohiro Usui , Maximilien Verdier-Paoletti (2) , Sohei Wada , Meenakshi Wadhwa , Daisuke Wakabayashi , Richard J. Walker , Katsuyuki Yamashita , Shohei Yamashita , Qing-Zhu Yin , Tetsuya Yokoyama , Shigekazu Yoneda , Edward D. Young , Hiroharu Yui , Ai-Cheng Zhang , Masanao Abe , Akiko Miyazaki , Aiko Nakato , Satoru Nakazawa , Masahiro Nishimura , Tatsuaki Okada , Takanao Saiki , Satoshi Tanaka , Fuyuto Terui , Yuichi Tsuda , Sei-Ichiro Watanabe , Toru Yada , Kasumi Yogata , Makoto Yoshikawa , Tomoki Nakamura , Hiroshi Naraoka , Takaaki Noguchi , Ryuji Okazaki , Kanako Sakamoto , Shogo Tachibana , Hisayoshi Yurimoto
Jens Barosch
  • Function : Author
Larry R. Nittler
  • Function : Author
Jianhua Wang
  • Function : Author
Conel M. O'D. Alexander
  • Function : Author
Bradley T. de Gregorio
  • Function : Author
Yoko Kebukawa
  • Function : Author
Kazuhide Nagashima
  • Function : Author
Rhonda M. Stroud
  • Function : Author
Hikaru Yabuta
  • Function : Author
Yoshinari Abe
  • Function : Author
Sachiko Amari
  • Function : Author
Yuri Amelin
  • Function : Author
Ken-Ichi Bajo
  • Function : Author
Martin Bizzarro
  • Function : Author
Audrey Bouvier
  • Function : Author
Richard W. Carlson
  • Function : Author
Byeon-Gak Choi
  • Function : Author
George D. Cody
  • Function : Author
Nicolas Dauphas
  • Function : Author
Andrew M. Davis
  • Function : Author
Alexandre Dazzi
Ariane Deniset-Besseau
Tommaso Di Rocco
  • Function : Author
Wataru Fujiya
  • Function : Author
Ryota Fukai
  • Function : Author
Ikshu Gautam
  • Function : Author
Makiko K. Haba
  • Function : Author
Minako Hashiguchi
  • Function : Author
Yuki Hibiya
  • Function : Author
Hiroshi Hidaka
  • Function : Author
Hisashi Homma
  • Function : Author
Peter Hoppe
  • Function : Author
Gary R. Huss
  • Function : Author
Kiyohiro Ichida
  • Function : Author
Tsuyoshi Iizuka
  • Function : Author
Trevor R. Ireland
  • Function : Author
Akira Ishikawa
  • Function : Author
Motoo Ito
  • Function : Author
Shoichi Itoh
  • Function : Author
Kanami Kamide
  • Function : Author
Noriyuki Kawasaki
  • Function : Author
A. L. David Kilcoyne
  • Function : Author
Noriko T. Kita
  • Function : Author
Kouki Kitajima
  • Function : Author
Thorsten Kleine
  • Function : Author
Shintaro Komatani
  • Function : Author
Mutsumi Komatsu
  • Function : Author
Alexander N. Krot
  • Function : Author
Ming-Chang Liu
  • Function : Author
Zita Martins
  • Function : Author
Yuki Masuda
  • Function : Author
Kevin D. Mckeegan
  • Function : Author
Mayu Morita
  • Function : Author
Kazuko Motomura
  • Function : Author
Izumi Nakai
  • Function : Author
Ann N. Nguyen
  • Function : Author
Takuji Ohigashi
  • Function : Author
Taiga Okumura
  • Function : Author
Morihiko Onose
  • Function : Author
Andreas Pack
  • Function : Author
Changkun Park
  • Function : Author
Liping Qin
  • Function : Author
Sara S. Russell
  • Function : Author
Naoya Sakamoto
  • Function : Author
Scott A. Sandford
  • Function : Author
Maria Schönbächler
  • Function : Author
Miho Shigenaka
  • Function : Author
Hiroki Suga
  • Function : Author
Lauren Tafla
  • Function : Author
Yoshio Takahashi
  • Function : Author
Yasuo Takeichi
  • Function : Author
Yusuke Tamenori
  • Function : Author
Haolan Tang
  • Function : Author
Kentaro Terada
  • Function : Author
Yasuko Terada
  • Function : Author
Tomohiro Usui
  • Function : Author
Sohei Wada
  • Function : Author
Meenakshi Wadhwa
  • Function : Author
Daisuke Wakabayashi
  • Function : Author
Richard J. Walker
  • Function : Author
Katsuyuki Yamashita
  • Function : Author
Shohei Yamashita
  • Function : Author
Qing-Zhu Yin
  • Function : Author
Tetsuya Yokoyama
  • Function : Author
Shigekazu Yoneda
  • Function : Author
Edward D. Young
  • Function : Author
Hiroharu Yui
  • Function : Author
Ai-Cheng Zhang
  • Function : Author
Masanao Abe
  • Function : Author
Akiko Miyazaki
  • Function : Author
Aiko Nakato
  • Function : Author
Satoru Nakazawa
  • Function : Author
Masahiro Nishimura
  • Function : Author
Tatsuaki Okada
  • Function : Author
Takanao Saiki
  • Function : Author
Satoshi Tanaka
  • Function : Author
Fuyuto Terui
  • Function : Author
Yuichi Tsuda
  • Function : Author
Sei-Ichiro Watanabe
  • Function : Author
Toru Yada
  • Function : Author
Kasumi Yogata
  • Function : Author
Makoto Yoshikawa
  • Function : Author
Tomoki Nakamura
  • Function : Author
Hiroshi Naraoka
  • Function : Author
Takaaki Noguchi
  • Function : Author
Ryuji Okazaki
  • Function : Author
Kanako Sakamoto
  • Function : Author
Shogo Tachibana
  • Function : Author
Hisayoshi Yurimoto
  • Function : Author

Abstract

We have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection of all major presolar grain types with O- and C-anomalous isotopic compositions typically identified in carbonaceous chondrite meteorites: 1 silicate, 1 oxide, 1 O-anomalous supernova grain of ambiguous phase, 38 SiC, and 16 carbonaceous grains. At least two of the carbonaceous grains are presolar graphites, whereas several grains with moderate C isotopic anomalies are probably organics. The presolar silicate was located in a clast with a less altered lithology than the typical extensively aqueously altered Ryugu matrix. The matrix-normalized presolar grain abundances in Ryugu are ${4.8}_{-2.6}^{+4.7}$ ppm for O-anomalous grains, ${25}_{-5}^{+6}$ ppm for SiC grains, and ${11}_{-3}^{+5}$ ppm for carbonaceous grains. Ryugu is isotopically and petrologically similar to carbonaceous Ivuna-type (CI) chondrites. To compare the in situ presolar grain abundances of Ryugu with CI chondrites, we also mapped Ivuna and Orgueil samples and found a total of 15 SiC grains and 6 carbonaceous grains. No O-anomalous grains were detected. The matrix-normalized presolar grain abundances in the CI chondrites are similar to those in Ryugu: ${23}_{-6}^{+7}$ ppm SiC and ${9.0}_{-3.6}^{+5.4}$ ppm carbonaceous grains. Thus, our results provide further evidence in support of the Ryugu-CI connection. They also reveal intriguing hints of small-scale heterogeneities in the Ryugu samples, such as locally distinct degrees of alteration that allowed the preservation of delicate presolar material.
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insu-03776407 , version 1 (13-09-2022)

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Jens Barosch, Larry R. Nittler, Jianhua Wang, Conel M. O'D. Alexander, Bradley T. de Gregorio, et al.. Presolar Stardust in Asteroid Ryugu. The Astrophysical journal letters, 2022, 935, ⟨10.3847/2041-8213/ac83bd⟩. ⟨insu-03776407⟩
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