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DOI | 10.1126/science.aax3901 |
Oxygen fugacities of extrasolar rocks: Evidence for an Earth-like geochemistry of exoplanets | |
Doyle, Alexandra E.1; Young, Edward D.1; Klein, Beth2; Zuckerman, Ben2; Schlichting, Hilke E.1,2,3 | |
2019-10-18 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 366期号:6463页码:356-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Oxygen fugacity is a measure of rock oxidation that influences planetary structure and evolution. Most rocky bodies in the Solar System formed at oxygen fugacities approximately five orders of magnitude higher than a hydrogen-rich gas of solar composition. It is unclear whether this oxidation of rocks in the Solar System is typical among other planetary systems. We exploit the elemental abundances observed in six white dwarfs polluted by the accretion of rocky bodies to determine the fraction of oxidized iron in those extrasolar rocky bodies and therefore their oxygen fugacities. The results are consistent with the oxygen fugacities of Earth, Mars, and typical asteroids in the Solar System, suggesting that at least some rocky exoplanets are geophysically and geochemically similar to Earth. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000491290000049 |
WOS关键词 | CORE FORMATION ; SOLAR NEBULA ; OXIDIZED IRON ; WHITE-DWARFS ; METAL-RICH ; CONSTRAINTS ; ACCRETION ; MANTLE ; DEBRIS ; CARBON |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202586 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA; 2.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA USA; 3.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA |
推荐引用方式 GB/T 7714 | Doyle, Alexandra E.,Young, Edward D.,Klein, Beth,et al. Oxygen fugacities of extrasolar rocks: Evidence for an Earth-like geochemistry of exoplanets[J]. SCIENCE,2019,366(6463):356-+. |
APA | Doyle, Alexandra E.,Young, Edward D.,Klein, Beth,Zuckerman, Ben,&Schlichting, Hilke E..(2019).Oxygen fugacities of extrasolar rocks: Evidence for an Earth-like geochemistry of exoplanets.SCIENCE,366(6463),356-+. |
MLA | Doyle, Alexandra E.,et al."Oxygen fugacities of extrasolar rocks: Evidence for an Earth-like geochemistry of exoplanets".SCIENCE 366.6463(2019):356-+. |
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