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

被引：27

作者：

Aponte, Jose C. ^{[1
]}

Dworkin, Jason P. ^{[1
]}

Glavin, Daniel P. ^{[1
]}

Elsila, Jamie E. ^{[1
]}

Parker, Eric T. ^{[1
]}

McLain, Hannah L. ^{[1
,2
,3
]}

Naraoka, Hiroshi ^{[4
]}

Okazaki, Ryuji ^{[4
]}

Takano, Yoshinori ^{[5
]}

Tachibana, Shogo ^{[6
,7
]}

Dong, Guannan ^{[8
]}

Zeichner, Sarah S. ^{[8
]}

Eiler, John M. ^{[8
]}

Yurimoto, Hisayoshi ^{[9
]}

Nakamura, Tomoki ^{[10
]}

Yabuta, Hikaru ^{[11
]}

Terui, Fuyuto ^{[12
]}

Noguchi, Takaaki ^{[13
]}

Sakamoto, Kanako ^{[14
]}

Yada, Toru ^{[14
]}

Nishimura, Masahiro ^{[14
]}

Nakato, Aiko ^{[14
]}

Miyazaki, Akiko ^{[14
]}

Yogata, Kasumi ^{[14
]}

Abe, Masanao ^{[14
]}

Okada, Tatsuaki ^{[14
]}

Usui, Tomohiro ^{[14
]}

Yoshikawa, Makoto ^{[14
]}

Saiki, Takanao ^{[14
]}

Tanaka, Satoshi ^{[14
]}

Nakazawa, Satoru ^{[14
]}

Tsuda, Yuichi ^{[14
]}

Watanabe, Sei-ichiro ^{[15
]}

机构：

[1] NASA Goddard Space Flight Ctr, Solar Syst Explorat Div, Code 690, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[2] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA

[3] NASA, GSFC, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA

[4] Kyushu Univ, Nishi-Ku, Fukuoka 8190395, Japan

[5] Biogeochem Res Ctr BGC, Japan Agcy Marine Earth Sci & Technol JAMSTEC, Yokosuka, Kanagawa 2370061, Japan

[6] Univ Tokyo, 7-3-1 Hongo, Tokyo 1130033, Japan

[7] Japan Aerosp Explorat Agcy JAXA, Sagamihara 2298510, Japan

[8] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[9] Hokkaido Univ, Sapporo 0600810, Japan

[10] Tohoku Univ, Sendai 9808578, Japan

[11] Hiroshima Univ, Hiroshima 7398526, Japan

[12] Kanagawa Inst Technol, Atsugi 2430292, Japan

[13] Kyoto Univ, Kyoto 6068502, Japan

[14] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci ISAS, Sagamihara 2525210, Japan

[15] Nagoya Univ, Nagoya 4648601, Japan

来源：

EARTH PLANETS AND SPACE | 2023年 / 75卷 / 01期

关键词：

Hayabusa2; Ryugu; PAHs; Aqueous alteration; Soluble organics; GCxGC; Chromatography; Aliphatic organics; POLYCYCLIC AROMATIC-HYDROCARBONS; INSOLUBLE ORGANIC-MATTER; CARRY-ON IMPACTOR; CARBONACEOUS CHONDRITES; ORIGIN; FRACTIONATION; ISOTOPE; COLLECTION; EXCESSES; SYSTEM;

D O I：

10.1186/s40623-022-01758-4

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

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 (GCxGC-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.

引用

页数：14

共 73 条

[1] Deuterium enrichments in chondritic macromolecular material-Implications for the origin and evolution of organics, water and asteroids [J].