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Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu

Author

Listed:
  • Yoshinori Takano

    (Natsushima
    Tsuruoka)

  • Hiroshi Naraoka

    (Nishi-ku)

  • Jason P. Dworkin

    (NASA Goddard Space Flight Center)

  • Toshiki Koga

    (Natsushima)

  • Kazunori Sasaki

    (Tsuruoka
    Tsuruoka)

  • Hajime Sato

    (Tsuruoka)

  • Yasuhiro Oba

    (N19W8 Kita-ku)

  • Nanako O. Ogawa

    (Natsushima)

  • Toshihiro Yoshimura

    (Natsushima)

  • Kenji Hamase

    (Kyushu University)

  • Naohiko Ohkouchi

    (Natsushima)

  • Eric T. Parker

    (NASA Goddard Space Flight Center)

  • José C. Aponte

    (NASA Goddard Space Flight Center)

  • Daniel P. Glavin

    (NASA Goddard Space Flight Center)

  • Yoshihiro Furukawa

    (Tohoku University)

  • Junken Aoki

    (Hongo)

  • Kuniyuki Kano

    (Hongo)

  • Shin-ichiro M. Nomura

    (Tohoku University)

  • Francois-Regis Orthous-Daunay

    (L’Institut de Planétologie et d’Astrophysique de Grenoble)

  • Philippe Schmitt-Kopplin

    (Analytische Lebensmittel Chemie
    Max Planck Institute for Extraterrestrial Physics
    NASA Goddard Space Flight Center)

  • Hisayoshi Yurimoto

    (Hokkaido University)

  • Tomoki Nakamura

    (Tohoku University)

  • Takaaki Noguchi

    (Kyoto University)

  • Ryuji Okazaki

    (Nishi-ku)

  • Hikaru Yabuta

    (Hiroshima University)

  • Kanako Sakamoto

    (Japan Aerospace Exploration Agency (JAXA))

  • Toru Yada

    (Japan Aerospace Exploration Agency (JAXA))

  • Masahiro Nishimura

    (Japan Aerospace Exploration Agency (JAXA))

  • Aiko Nakato

    (Japan Aerospace Exploration Agency (JAXA))

  • Akiko Miyazaki

    (Japan Aerospace Exploration Agency (JAXA))

  • Kasumi Yogata

    (Japan Aerospace Exploration Agency (JAXA))

  • Masanao Abe

    (Japan Aerospace Exploration Agency (JAXA))

  • Tatsuaki Okada

    (Japan Aerospace Exploration Agency (JAXA))

  • Tomohiro Usui

    (Japan Aerospace Exploration Agency (JAXA))

  • Makoto Yoshikawa

    (Japan Aerospace Exploration Agency (JAXA))

  • Takanao Saiki

    (Japan Aerospace Exploration Agency (JAXA))

  • Satoshi Tanaka

    (Japan Aerospace Exploration Agency (JAXA))

  • Fuyuto Terui

    (Kanagawa Institute of Technology)

  • Satoru Nakazawa

    (Japan Aerospace Exploration Agency (JAXA))

  • Sei-ichiro Watanabe

    (Nagoya University)

  • Yuichi Tsuda

    (Japan Aerospace Exploration Agency (JAXA))

  • Shogo Tachibana

    (Japan Aerospace Exploration Agency (JAXA)
    7-3-1 Hongo)

Abstract

We report primordial aqueous alteration signatures in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu by the Hayabusa2 spacecraft of JAXA. Newly identified low-molecular-weight hydroxy acids (HO-R-COOH) and dicarboxylic acids (HOOC-R-COOH), such as glycolic acid, lactic acid, glyceric acid, oxalic acid, and succinic acid, are predominant in samples from the two touchdown locations at Ryugu. The quantitative and qualitative profiles for the hydrophilic molecules between the two sampling locations shows similar trends within the order of ppb (parts per billion) to ppm (parts per million). A wide variety of structural isomers, including α- and β-hydroxy acids, are observed among the hydrophilic molecules. We also identify pyruvic acid and dihydroxy and tricarboxylic acids, which are biochemically important intermediates relevant to molecular evolution, such as the primordial TCA (tricarboxylic acid) cycle. Here, we find evidence that the asteroid Ryugu samples underwent substantial aqueous alteration, as revealed by the presence of malonic acid during keto–enol tautomerism in the dicarboxylic acid profile. The comprehensive data suggest the presence of a series for water-soluble organic molecules in the regolith of Ryugu and evidence of signatures in coevolutionary aqueous alteration between water and organics in this carbonaceous asteroid.

Suggested Citation

  • Yoshinori Takano & Hiroshi Naraoka & Jason P. Dworkin & Toshiki Koga & Kazunori Sasaki & Hajime Sato & Yasuhiro Oba & Nanako O. Ogawa & Toshihiro Yoshimura & Kenji Hamase & Naohiko Ohkouchi & Eric T. , 2024. "Primordial aqueous alteration recorded in water-soluble organic molecules from the carbonaceous asteroid (162173) Ryugu," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49237-6
    DOI: 10.1038/s41467-024-49237-6
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    References listed on IDEAS

    as
    1. Tatsuaki Okada & Tetsuya Fukuhara & Satoshi Tanaka & Makoto Taguchi & Takehiko Arai & Hiroki Senshu & Naoya Sakatani & Yuri Shimaki & Hirohide Demura & Yoshiko Ogawa & Kentaro Suko & Tomohiko Sekiguch, 2020. "Highly porous nature of a primitive asteroid revealed by thermal imaging," Nature, Nature, vol. 579(7800), pages 518-522, March.
    2. Toshihiro Yoshimura & Yoshinori Takano & Hiroshi Naraoka & Toshiki Koga & Daisuke Araoka & Nanako O. Ogawa & Philippe Schmitt-Kopplin & Norbert Hertkorn & Yasuhiro Oba & Jason P. Dworkin & José C. Apo, 2023. "Chemical evolution of primordial salts and organic sulfur molecules in the asteroid 162173 Ryugu," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    3. Philippe Schmitt-Kopplin & Norbert Hertkorn & Mourad Harir & Franco Moritz & Marianna Lucio & Lydie Bonal & Eric Quirico & Yoshinori Takano & Jason P. Dworkin & Hiroshi Naraoka & Shogo Tachibana & Tom, 2023. "Soluble organic matter Molecular atlas of Ryugu reveals cold hydrothermalism on C-type asteroid parent body," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    Full references (including those not matched with items on IDEAS)

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