論文

査読有り
2009年

Non-chondritic oxygen isotopic component of metals in a noble-gas-rich chondrite-vestige of stellar wind from the protosun?

GEOCHEMICAL JOURNAL
  • Kumiko Fujimoto
  • ,
  • Shoichi Itoh
  • ,
  • Shingo Ebata
  • ,
  • Hisayoshi Yurimoto

43
6
開始ページ
E11
終了ページ
E15
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.2343/geochemj.1.0057
出版者・発行元
GEOCHEMICAL SOC JAPAN

Oxygen isotopic compositions of metal grains in a noble-gas-rich chondrite, NWA 801 CR2, have been determined by secondary ion mass spectrometry. The results show bimodal distribution on Delta O-17 histogram with peaks of Delta O-17 = 2.3 and -35.0 parts per thousand. The O-16-rich peak seems to be due to stellar wind from the protosun. The O-16 enrichment is comparable with the most O-16-rich value from chondrite constituents. Difference of oxygen isotopic composition of stellar wind between protosun and the present sun implies how self-pollution by planetary embryos during the planet formation epoch have occurred and whether the present solar photosphere preserves the representative composition of the solar system.

リンク情報
DOI
https://doi.org/10.2343/geochemj.1.0057
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000273869600008&DestApp=WOS_CPL
ID情報
  • DOI : 10.2343/geochemj.1.0057
  • ISSN : 0016-7002
  • eISSN : 1880-5973
  • Web of Science ID : WOS:000273869600008

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