2022年6月9日
Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites.
Science (New York, N.Y.)
- 巻
- 379
- 号
- 6634
- 開始ページ
- eabn7850
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1126/science.abn7850
Carbonaceous meteorites are thought to be fragments of C-type (carbonaceous) asteroids. Samples of the C-type asteroid (162173) Ryugu were retrieved by the Hayabusa2 spacecraft. We measure the mineralogy, bulk chemical and isotopic compositions of Ryugu samples. They are mainly composed of materials similar to carbonaceous chondrite meteorites, particularly the CI (Ivuna-type) group. The samples consist predominantly of minerals formed in aqueous fluid on a parent planetesimal. The primary minerals were altered by fluids at a temperature of 37 ± 10°C, [Formula: see text] (Stat.) [Formula: see text] (Syst.) million years after formation of the first solids in the Solar System. After aqueous alteration, the Ryugu samples were likely never heated above ~100°C. The samples have a chemical composition that more closely resembles the Sun's photosphere than other natural samples do.
- リンク情報
-
- DOI
- https://doi.org/10.1126/science.abn7850
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/35679354
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000981670800001&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85148773523&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85148773523&origin=inward
- URL
- https://publons.com/wos-op/publon/52884264/
- ID情報
-
- DOI : 10.1126/science.abn7850
- ISSN : 0036-8075
- eISSN : 1095-9203
- ORCIDのPut Code : 152370845
- PubMed ID : 35679354
- SCOPUS ID : 85148773523
- Web of Science ID : WOS:000981670800001