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Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium.
Zeichner, Sarah S; Aponte, José C; Bhattacharjee, Surjyendu; Dong, Guannan; Hofmann, Amy E; Dworkin, Jason P; Glavin, Daniel P; Elsila, Jamie E; Graham, Heather V; Naraoka, Hiroshi; Takano, Yoshinori; Tachibana, Shogo; Karp, Allison T; Grice, Kliti; Holman, Alex I; Freeman, Katherine H; Yurimoto, Hisayoshi; Nakamura, Tomoki; Noguchi, Takaaki; Okazaki, Ryuji; Yabuta, Hikaru; Sakamoto, Kanako; Yada, Toru; Nishimura, Masahiro; Nakato, Aiko; Miyazaki, Akiko; Yogata, Kasumi; Abe, Masanao; Okada, Tatsuaki; Usui, Tomohiro; Yoshikawa, Makoto; Saiki, Takanao; Tanaka, Satoshi; Terui, Fuyuto; Nakazawa, Satoru; Watanabe, Sei-Ichiro; Tsuda, Yuichi; Hamase, Kenji; Fukushima, Kazuhiko; Aoki, Dan; Hashiguchi, Minako; Mita, Hajime; Chikaraishi, Yoshito; Ohkouchi, Naohiko; Ogawa, Nanako O; Sakai, Saburo; Parker, Eric T; McLain, Hannah L; Orthous-Daunay, Francois-Regis; Vuitton, Véronique.
Afiliación
  • Zeichner SS; Geological and Planetary Science Division, California Institute of Technology, Pasadena, CA 91125, USA.
  • Aponte JC; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
  • Bhattacharjee S; Geological and Planetary Science Division, California Institute of Technology, Pasadena, CA 91125, USA.
  • Dong G; Geological and Planetary Science Division, California Institute of Technology, Pasadena, CA 91125, USA.
  • Hofmann AE; Geological and Planetary Science Division, California Institute of Technology, Pasadena, CA 91125, USA.
  • Dworkin JP; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Glavin DP; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
  • Elsila JE; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
  • Graham HV; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
  • Naraoka H; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
  • Takano Y; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan.
  • Tachibana S; Biogeochemistry Research Center, Japanese Agency for Marine-Earth Science and Technology, Yokosuka, Kanagawa 237-0061, Japan.
  • Karp AT; Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.
  • Grice K; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Holman AI; Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, USA.
  • Freeman KH; Ecology and Evolutionary Biology Department, Yale University, New Haven, CT, USA.
  • Yurimoto H; Department of Environmental, Earth, and Planetary Sciences, Brown University, Providence, RI 02912, USA.
  • Nakamura T; Western Australia Organic & Isotope Geochemistry Centre, The Institute for Geoscience Research, School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia 6102, Australia.
  • Noguchi T; Western Australia Organic & Isotope Geochemistry Centre, The Institute for Geoscience Research, School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia 6102, Australia.
  • Okazaki R; Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, USA.
  • Yabuta H; Department of Earth and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan.
  • Sakamoto K; Department of Earth Science, Tohoku University, Sendai 980-8578, Japan.
  • Yada T; Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.
  • Nishimura M; Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan.
  • Nakato A; Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan.
  • Miyazaki A; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Yogata K; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Abe M; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Okada T; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Usui T; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Yoshikawa M; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Saiki T; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Tanaka S; School of Physical Sciences, The Graduate University for Advanced Studies, Hayama 240-0193, Japan.
  • Terui F; Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.
  • Nakazawa S; Department of Chemistry, University of Tokyo, Tokyo 113-0033, Japan.
  • Watanabe SI; Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.
  • Tsuda Y; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Hamase K; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Fukushima K; School of Physical Sciences, The Graduate University for Advanced Studies, Hayama 240-0193, Japan.
  • Aoki D; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Hashiguchi M; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Mita H; School of Physical Sciences, The Graduate University for Advanced Studies, Hayama 240-0193, Japan.
  • Chikaraishi Y; Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan.
  • Ohkouchi N; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Ogawa NO; Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan.
  • Sakai S; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.
  • Parker ET; Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
  • McLain HL; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
  • Orthous-Daunay FR; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
  • Vuitton V; Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan.
Science ; 382(6677): 1411-1416, 2023 12 22.
Article en En | MEDLINE | ID: mdl-38127762
ABSTRACT
Polycyclic aromatic hydrocarbons (PAHs) contain ≲20% of the carbon in the interstellar medium. They are potentially produced in circumstellar environments (at temperatures ≳1000 kelvin), by reactions within cold (~10 kelvin) interstellar clouds, or by processing of carbon-rich dust grains. We report isotopic properties of PAHs extracted from samples of the asteroid Ryugu and the meteorite Murchison. The doubly-13C substituted compositions (Δ2×13C values) of the PAHs naphthalene, fluoranthene, and pyrene are 9 to 51‰ higher than values expected for a stochastic distribution of isotopes. The Δ2×13C values are higher than expected if the PAHs formed in a circumstellar environment, but consistent with formation in the interstellar medium. By contrast, the PAHs phenanthrene and anthracene in Ryugu samples have Δ2×13C values consistent with formation by higher-temperature reactions.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Science Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos