Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu

Ann N. Nguyen; Prajkta Mane; Lindsay P. Keller; Laurette Piani; 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; Kiyohiro Ichida; Tsuyoshi Iizuka; Trevor R. Ireland; Akira Ishikawa; 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; Izumi Nakai; Kazuhide Nagashima; David Nesvorný; Larry Nittler; Morihiko Onose; Andreas Pack; Changkun Park; 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; Tetsuya Yokoyama; Shigekazu Yoneda; Edward D. Young; Hiroharu Yui; Ai Cheng Zhang; Tomoki Nakamura; Hiroshi Naraoka; Takaaki Noguchi; 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

doi:10.1126/sciadv.adh1003

Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu

Ann N. Nguyen, Prajkta Mane, Lindsay P. Keller, Laurette Piani, 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 FukaiIkshu Gautam, Makiko K. Haba, Yuki Hibiya, Hiroshi Hidaka, Hisashi Homma, Peter Hoppe, Gary R. Huss, Kiyohiro Ichida, Tsuyoshi Iizuka, Trevor R. Ireland, Akira Ishikawa, 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, Izumi Nakai, Kazuhide Nagashima, David Nesvorný, Larry Nittler, Morihiko Onose, Andreas Pack, Changkun Park, 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, Tetsuya Yokoyama, Shigekazu Yoneda, Edward D. Young, Hiroharu Yui, Ai Cheng Zhang, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, 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

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Article › peer-review

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Abstract

Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI (Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich, particularly primitive clasts in Ryugu samples that contain preserved presolar silicate grains and exceptional abundances of presolar SiC and isotopically anomalous organic matter. The high presolar silicate abundance (104 ppm) indicates that the clast escaped extensive alteration. The 5 to 10 times higher abundances of presolar SiC (~235 ppm), N-rich organic matter, organics with N isotopic anomalies (1.2%), and organics with C isotopic anomalies (0.2%) in the primitive clasts compared to bulk Ryugu suggest that the clasts formed in a unique part of the protoplanetary disk enriched in presolar materials. These clasts likely represent previously unsampled outer solar system material that accreted onto Ryugu after aqueous alteration ceased, consistent with Ryugu’s rubble pile origin.

Original language	English (US)
Article number	eadh1003
Journal	Science Advances
Volume	9
Issue number	28
DOIs	https://doi.org/10.1126/sciadv.adh1003
State	Published - Jul 12 2023

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Nguyen, A. N., Mane, P., Keller, L. P., Piani, L., Abe, Y., Aléon, J., Alexander, C. M. O. D., Amari, S., Amelin, Y., Bajo, K. I., Bizzarro, M., Bouvier, A., Carlson, R. W., Chaussidon, M., Choi, B. G., Dauphas, N., Davis, A. M., Di Rocco, T., Fujiya, W., ... Yurimoto, H. (2023). Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu. Science Advances, 9(28), Article eadh1003. https://doi.org/10.1126/sciadv.adh1003

Nguyen, AN, Mane, P, Keller, LP, Piani, L, Abe, Y, Aléon, J, Alexander, CMOD, Amari, S, Amelin, Y, Bajo, KI, Bizzarro, M, Bouvier, A, Carlson, RW, Chaussidon, M, Choi, BG, Dauphas, N, Davis, AM, Di Rocco, T, Fujiya, W, Fukai, R, Gautam, I, Haba, MK, Hibiya, Y, Hidaka, H, Homma, H, Hoppe, P, Huss, GR, Ichida, K, Iizuka, T, Ireland, TR, Ishikawa, A, Itoh, S, Kawasaki, N, Kita, NT, Kitajima, K, Kleine, T, Komatani, S, Krot, AN, Liu, MC, Masuda, Y, McKeegan, KD, Morita, M, Motomura, K, Moynier, F, Nakai, I, Nagashima, K, Nesvorný, D, Nittler, L, Onose, M, Pack, A, Park, C, Qin, L, Russell, SS, Sakamoto, N, Schönbächler, M, Tafla, L, Tang, H, Terada, K, Terada, Y, Usui, T, Wada, S, Wadhwa, M, Walker, RJ, Yamashita, K, Yin, QZ, Yokoyama, T, Yoneda, S, Young, ED, Yui, H, Zhang, AC, Nakamura, T, Naraoka, H, Noguchi, T, Okazaki, R, Sakamoto, K, Yabuta, H, Abe, M, Miyazaki, A, Nakato, A, Nishimura, M, Okada, T, Yada, T, Yogata, K, Nakazawa, S, Saiki, T, Tanaka, S, Terui, F, Tsuda, Y, Watanabe, SI, Yoshikawa, M, Tachibana, S & Yurimoto, H 2023, 'Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu', Science Advances, vol. 9, no. 28, eadh1003. https://doi.org/10.1126/sciadv.adh1003

@article{9c37c504123842c2af37dde02eca0e1b,

title = "Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu",

abstract = "Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI (Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich, particularly primitive clasts in Ryugu samples that contain preserved presolar silicate grains and exceptional abundances of presolar SiC and isotopically anomalous organic matter. The high presolar silicate abundance (104 ppm) indicates that the clast escaped extensive alteration. The 5 to 10 times higher abundances of presolar SiC (~235 ppm), N-rich organic matter, organics with N isotopic anomalies (1.2%), and organics with C isotopic anomalies (0.2%) in the primitive clasts compared to bulk Ryugu suggest that the clasts formed in a unique part of the protoplanetary disk enriched in presolar materials. These clasts likely represent previously unsampled outer solar system material that accreted onto Ryugu after aqueous alteration ceased, consistent with Ryugu{\textquoteright}s rubble pile origin.",

author = "Nguyen, {Ann N.} and Prajkta Mane and Keller, {Lindsay P.} and Laurette Piani and Yoshinari Abe and J{\'e}r{\^o}me Al{\'e}on and Alexander, {Conel M.O{\textquoteright} D.} and Sachiko Amari and Yuri Amelin and Bajo, {Ken Ichi} and Martin Bizzarro and Audrey Bouvier and Carlson, {Richard W.} and Marc Chaussidon and Choi, {Byeon Gak} and Nicolas Dauphas and Davis, {Andrew M.} and {Di Rocco}, Tommaso and Wataru Fujiya and Ryota Fukai and Ikshu Gautam and Haba, {Makiko K.} and Yuki Hibiya and Hiroshi Hidaka and Hisashi Homma and Peter Hoppe and Huss, {Gary R.} and Kiyohiro Ichida and Tsuyoshi Iizuka and Ireland, {Trevor R.} and Akira Ishikawa and Shoichi Itoh and Noriyuki Kawasaki and Kita, {Noriko T.} and Kouki Kitajima and Thorsten Kleine and Shintaro Komatani and Krot, {Alexander N.} and Liu, {Ming Chang} and Yuki Masuda and McKeegan, {Kevin D.} and Mayu Morita and Kazuko Motomura and Fr{\'e}d{\'e}ric Moynier and Izumi Nakai and Kazuhide Nagashima and David Nesvorn{\'y} and Larry Nittler and Morihiko Onose and Andreas Pack and Changkun Park and Liping Qin and Russell, {Sara S.} and Naoya Sakamoto and Maria Sch{\"o}nb{\"a}chler and Lauren Tafla and Haolan Tang and Kentaro Terada and Yasuko Terada and Tomohiro Usui and Sohei Wada and Meenakshi Wadhwa and Walker, {Richard J.} and Katsuyuki Yamashita and Yin, {Qing Zhu} and Tetsuya Yokoyama and Shigekazu Yoneda and Young, {Edward D.} and Hiroharu Yui and Zhang, {Ai Cheng} and Tomoki Nakamura and Hiroshi Naraoka and Takaaki Noguchi and Ryuji Okazaki and Kanako Sakamoto and Hikaru Yabuta and Masanao Abe and Akiko Miyazaki and Aiko Nakato and Masahiro Nishimura and Tatsuaki Okada and Toru Yada and Kasumi Yogata and Satoru Nakazawa and Takanao Saiki and Satoshi Tanaka and Fuyuto Terui and Yuichi Tsuda and Watanabe, {Sei Ichiro} and Makoto Yoshikawa and Shogo Tachibana and Hisayoshi Yurimoto",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors, some rights reserved.",

year = "2023",

month = jul,

day = "12",

doi = "10.1126/sciadv.adh1003",

language = "English (US)",

volume = "9",

journal = "Science Advances",

issn = "2375-2548",

publisher = "American Association for the Advancement of Science",

number = "28",

}

TY - JOUR

T1 - Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu

AU - Nguyen, Ann N.

AU - Mane, Prajkta

AU - Keller, Lindsay P.

AU - Piani, Laurette

AU - Abe, Yoshinari

AU - Aléon, Jérôme

AU - Alexander, Conel M.O’ D.

AU - Amari, Sachiko

AU - Amelin, Yuri

AU - Bajo, Ken Ichi

AU - Bizzarro, Martin

AU - Bouvier, Audrey

AU - Carlson, Richard W.

AU - Chaussidon, Marc

AU - Choi, Byeon Gak

AU - Dauphas, Nicolas

AU - Davis, Andrew M.

AU - Di Rocco, Tommaso

AU - Fujiya, Wataru

AU - Fukai, Ryota

AU - Gautam, Ikshu

AU - Haba, Makiko K.

AU - Hibiya, Yuki

AU - Hidaka, Hiroshi

AU - Homma, Hisashi

AU - Hoppe, Peter

AU - Huss, Gary R.

AU - Ichida, Kiyohiro

AU - Iizuka, Tsuyoshi

AU - Ireland, Trevor R.

AU - Ishikawa, Akira

AU - Itoh, Shoichi

AU - Kawasaki, Noriyuki

AU - Kita, Noriko T.

AU - Kitajima, Kouki

AU - Kleine, Thorsten

AU - Komatani, Shintaro

AU - Krot, Alexander N.

AU - Liu, Ming Chang

AU - Masuda, Yuki

AU - McKeegan, Kevin D.

AU - Morita, Mayu

AU - Motomura, Kazuko

AU - Moynier, Frédéric

AU - Nakai, Izumi

AU - Nagashima, Kazuhide

AU - Nesvorný, David

AU - Nittler, Larry

AU - Onose, Morihiko

AU - Pack, Andreas

AU - Park, Changkun

AU - Qin, Liping

AU - Russell, Sara S.

AU - Sakamoto, Naoya

AU - Schönbächler, Maria

AU - Tafla, Lauren

AU - Tang, Haolan

AU - Terada, Kentaro

AU - Terada, Yasuko

AU - Usui, Tomohiro

AU - Wada, Sohei

AU - Wadhwa, Meenakshi

AU - Walker, Richard J.

AU - Yamashita, Katsuyuki

AU - Yin, Qing Zhu

AU - Yokoyama, Tetsuya

AU - Yoneda, Shigekazu

AU - Young, Edward D.

AU - Yui, Hiroharu

AU - Zhang, Ai Cheng

AU - Nakamura, Tomoki

AU - Naraoka, Hiroshi

AU - Noguchi, Takaaki

AU - Okazaki, Ryuji

AU - Sakamoto, Kanako

AU - Yabuta, Hikaru

AU - Abe, Masanao

AU - Miyazaki, Akiko

AU - Nakato, Aiko

AU - Nishimura, Masahiro

AU - Okada, Tatsuaki

AU - Yada, Toru

AU - Yogata, Kasumi

AU - Nakazawa, Satoru

AU - Saiki, Takanao

AU - Tanaka, Satoshi

AU - Terui, Fuyuto

AU - Tsuda, Yuichi

AU - Watanabe, Sei Ichiro

AU - Yoshikawa, Makoto

AU - Tachibana, Shogo

AU - Yurimoto, Hisayoshi

PY - 2023/7/12

Y1 - 2023/7/12

N2 - Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI (Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich, particularly primitive clasts in Ryugu samples that contain preserved presolar silicate grains and exceptional abundances of presolar SiC and isotopically anomalous organic matter. The high presolar silicate abundance (104 ppm) indicates that the clast escaped extensive alteration. The 5 to 10 times higher abundances of presolar SiC (~235 ppm), N-rich organic matter, organics with N isotopic anomalies (1.2%), and organics with C isotopic anomalies (0.2%) in the primitive clasts compared to bulk Ryugu suggest that the clasts formed in a unique part of the protoplanetary disk enriched in presolar materials. These clasts likely represent previously unsampled outer solar system material that accreted onto Ryugu after aqueous alteration ceased, consistent with Ryugu’s rubble pile origin.

AB - Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI (Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich, particularly primitive clasts in Ryugu samples that contain preserved presolar silicate grains and exceptional abundances of presolar SiC and isotopically anomalous organic matter. The high presolar silicate abundance (104 ppm) indicates that the clast escaped extensive alteration. The 5 to 10 times higher abundances of presolar SiC (~235 ppm), N-rich organic matter, organics with N isotopic anomalies (1.2%), and organics with C isotopic anomalies (0.2%) in the primitive clasts compared to bulk Ryugu suggest that the clasts formed in a unique part of the protoplanetary disk enriched in presolar materials. These clasts likely represent previously unsampled outer solar system material that accreted onto Ryugu after aqueous alteration ceased, consistent with Ryugu’s rubble pile origin.

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U2 - 10.1126/sciadv.adh1003

DO - 10.1126/sciadv.adh1003

M3 - Article

C2 - 37450600

AN - SCOPUS:85164759990

SN - 2375-2548

VL - 9

JO - Science Advances

JF - Science Advances

IS - 28

M1 - eadh1003

ER -

Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu

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