PAHs, hydrocarbons, and dimethylsulfides in Asteroid Ryugu samples A0106 and C0107 and the Orgueil (CI1) meteorite

Earth, Planets and Space

Full Paper

Yoshinori Takano¹  John M. Eiler²  Sarah S. Zeichner²  Guannan Dong²  Hikaru Yabuta³  Hisayoshi Yurimoto⁴  Akiko Miyazaki⁵  Tomohiro Usui⁵  Masahiro Nishimura⁵  Yuichi Tsuda⁵  Tatsuaki Okada⁵  Kanako Sakamoto⁵  Satoru Nakazawa⁵  Takanao Saiki⁵  Kasumi Yogata⁵  Masanao Abe⁵  Makoto Yoshikawa⁵  Aiko Nakato⁵  Toru Yada⁵  Satoshi Tanaka⁵  Fuyuto Terui⁶  Takaaki Noguchi⁷  Hiroshi Naraoka⁸  Ryuji Okazaki⁸  Sei-ichiro Watanabe⁹  Jamie E. Elsila^1,10  Eric T. Parker^1,10  Jason P. Dworkin^1,10  Daniel P. Glavin^1,10  José C. Aponte^1,10  Hannah L. McLain^1,11  Tomoki Nakamura^1,12  Shogo Tachibana^1,13 

[1] Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 237-0061, Yokosuka, Kanagawa, Japan;Division of Geological and Planetary Sciences, California Institute of Technology, 91125, Pasadena, CA, USA;Hiroshima University, 739-8526, Higashi-Hiroshima, Japan;Hokkaido University, 060-0810, Sapporo, Japan;Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 252-5210, Sagamihara, Japan;Kanagawa Institute of Technology, 243-0292, Atsugi, Japan;Kyoto University, 606-8502, Kyoto, Japan;Kyushu University, Nishi-Ku, 819-0395, Fukuoka, Japan;Nagoya University, 464-8601, Nagoya, Japan;Solar System Exploration Division, Code 690, NASA Goddard Space Flight Center, 8800 Greenbelt Rd., 20771, Greenbelt, MD, USA;Solar System Exploration Division, Code 690, NASA Goddard Space Flight Center, 8800 Greenbelt Rd., 20771, Greenbelt, MD, USA;Department of Physics, The Catholic University of America, 20064, Washington, DC, USA;Center for Research and Exploration in Space Science and Technology, NASA/GSFC, 20771, Greenbelt, MD, USA;Tohoku University, 980-8578, Sendai, Japan;University of Tokyo, 7-3-1 Hongo, 113-0033, Tokyo, Japan;Japan Aerospace Exploration Agency (JAXA), 229-8510, Sagamihara, Japan;

关键词: Hayabusa2;    Ryugu;    PAHs;    Aqueous alteration;    Soluble organics;    GC×GC;    Chromatography;    Aliphatic organics;   

DOI  :  10.1186/s40623-022-01758-4

 received in 2022-07-01, accepted in 2022-12-20,  发布年份 2022

来源: Springer

【 摘 要 】

Evaluating the molecular distribution of organic compounds in pristine extraterrestrial materials is cornerstone to understanding the abiotic synthesis of organics and allows us to better understand the molecular diversity available during the formation of our solar system and before the origins of life on Earth. In this work, we identify multiple organic compounds in solvent extracts of asteroid Ryugu samples A0106 and C0107 and the Orgueil meteorite using two-dimensional gas chromatography and time-of-flight high resolution mass spectrometry (GC×GC–HRMS). Our analyses found similarities between the molecular distribution of organic compounds in Ryugu and the CI carbonaceous chondrite Orgueil. Specifically, several PAHs and organosulfides were found in Ryugu and Orgueil suggesting an interstellar and parent body origin for these compounds. We also evaluated the common relationship between Ryugu, Orgueil, and comets, such as Wild-2; however, until comprehensive compound-specific isotopic analyses for these organic species are undertaken, and until the effects of parent body processes and Earth’s weathering processes on meteoritic organics are better understood, their parent–daughter relationships will remain unanswered. Finally, the study of organic compounds in Ryugu samples and the curation practices for the future preservation of these unvaluable materials are also of special interest for future sample return missions, including NASA’s OSIRIS-REx asteroid sample return mission.Graphical Abstract

【 授权许可】

CC BY   
© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2023

【 图 表 】

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