A primordial noble gas component discovered in the Ryugu asteroid and its implications-Reference-Cited by-同舟云学术

A primordial noble gas component discovered in the Ryugu asteroid and its implications

Published:2024-09-14 Issue:1 Volume:15 Page:
ISSN:2041-1723
Container-title:Nature Communications
language:en
Short-container-title:Nat Commun

Author:

Verchovsky Alexander B.^ORCID,Abernethy Feargus A. J.^ORCID,Anand Mahesh^ORCID,Franchi Ian A.^ORCID,Grady Monica M.^ORCID,Greenwood Richard C.^ORCID,Barber Simeon J.,Suttle Martin^ORCID,Ito Motoo^ORCID,Tomioka Naotaka^ORCID,Uesugi Masayuki^ORCID,Yamaguchi Akira^ORCID,Kimura Makoto^ORCID,Imae Naoya^ORCID,Shirai Naoki^ORCID,Ohigashi Takuji^ORCID,Liu Ming-Chang,Uesugi Kentaro^ORCID,Nakato Aiko^ORCID,Yogata Kasumi^ORCID,Yuzawa Hayato^ORCID,Karouji Yuzuru^ORCID,Nakazawa Satoru^ORCID,Okada Tatsuaki,Saiki Takanao,Tanaka Satoshi,Terui Fuyuto,Yoshikawa Makoto^ORCID,Miyazaki Akiko^ORCID,Nishimura Masahiro,Yada Toru,Abe Masanao,Usui Tomohiro^ORCID,Watanabe Sen-ichiro^ORCID,Tsuda Yuichi, ,Imae Naoya,Shirai Naoki,Hirahara Kaoki,Sakurai Ikuya,Okado Ikuo,Findlay Ross,Malley James A.,Zhao Xuchao,Pilorget Cerdic,Bebring Jean-Pierre,Loizeau Dambien,Carter John,Riu Lucie,Le Pivert-Jolivet Tania,McCain Katlyn,Matsuda Nozomi

Abstract

AbstractRyugu is the C-type asteroid from which material was brought to Earth by the Hayabusa2 mission. A number of individual grains and fine-grained samples analysed so far for noble gases have indicated that solar wind and planetary (known as P1) noble gases are present in Ryugu samples with concentrations higher than those observed in CIs, suggesting the former to be more primitive compared to the latter. Here we present results of analyses of three fine-grained samples from Ryugu, in one of which Xe concentration is an order of magnitude higher than determined so far in other samples from Ryugu. Isotopically, this Xe resembles P1, but with a much stronger isotopic fractionation relative to solar wind and significantly lower 36Ar/132Xe ratio than in P1. This previously unknown primordial noble gas component (here termed P7) provides clues to constrain how the solar composition was fractionated to form the planetary components.

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41467-024-52165-0.pdf

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