論文

査読有り
2023年12月22日

Polycyclic aromatic hydrocarbons in samples of Ryugu formed in the interstellar medium

Science (New York, N.Y.)
  • Sarah S. Zeichner
  • José C. Aponte
  • Surjyendu Bhattacharjee
  • Guannan Dong
  • Amy E. Hofmann
  • Jason P. Dworkin
  • Daniel P. Glavin
  • Jamie E. Elsila
  • Heather V. Graham
  • Hiroshi Naraoka
  • Yoshinori Takano
  • Shogo Tachibana
  • Allison T. Karp
  • Kliti Grice
  • Alex I. Holman
  • Katherine H. Freeman
  • Hisayoshi Yurimoto
  • Tomoki Nakamura
  • Takaaki Noguchi
  • Ryuji Okazaki
  • Hikaru Yabuta
  • Kanako Sakamoto
  • Toru Yada
  • Masahiro Nishimura
  • Aiko Nakato
  • Akiko Miyazaki
  • Kasumi Yogata
  • Masanao Abe
  • Tatsuaki Okada
  • Tomohiro Usui
  • Makoto Yoshikawa
  • Takanao Saiki
  • Satoshi Tanaka
  • Fuyuto Terui
  • Satoru Nakazawa
  • Sei Ichiro Watanabe
  • Yuichi Tsuda
  • Kenji Hamase
  • Kazuhiko Fukushima
  • Dan Aoki
  • Minako Hashiguchi
  • Hajime Mita
  • Yoshito Chikaraishi
  • Naohiko Ohkouchi
  • Nanako O. Ogawa
  • Saburo Sakai
  • Eric T. Parker
  • Hannah L. McLain
  • Francois Regis Orthous-Daunay
  • Véronique Vuitton
  • Cédric Wolters
  • Philippe Schmitt-Kopplin
  • Norbert Hertkorn
  • Roland Thissen
  • Alexander Ruf
  • Junko Isa
  • Yasuhiro Oba
  • Toshiki Koga
  • Toshihiro Yoshimura
  • Daisuke Araoka
  • Haruna Sugahara
  • Aogu Furusho
  • Yoshihiro Furukawa
  • Junken Aoki
  • Kuniyuki Kano
  • Shin Ichiro M. Nomura
  • Kazunori Sasaki
  • Hajime Sato
  • Takaaki Yoshikawa
  • Satoru Tanaka
  • Mayu Morita
  • Morihiko Onose
  • Fumie Kabashima
  • Kosuke Fujishima
  • Tomoya Yamazaki
  • Yuki Kimura
  • John M. Eiler
  • 全て表示

382
6677
開始ページ
1411
終了ページ
1416
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1126/science.adg6304

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 (~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.

リンク情報
DOI
https://doi.org/10.1126/science.adg6304
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/38127762
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85180805344&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85180805344&origin=inward
ID情報
  • DOI : 10.1126/science.adg6304
  • eISSN : 1095-9203
  • PubMed ID : 38127762
  • SCOPUS ID : 85180805344

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