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FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE

文献类型：期刊论文

作者Haenecour, Pierre1,2,3; Zhao, Xuchao4; Floss, Christine1,2; Lin, Yangting4; Zinner, Ernst1,2,3
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2013-05-01
卷号768期号:1
关键词circumstellar matter ISM: supernova remnants meteorites, meteors, meteoroids nuclear reactions, nucleosynthesis, abundances stars: winds, outflows supernovae: general
ISSN号2041-8205
DOI10.1088/2041-8205/768/1/L17
文献子类Article
英文摘要We report the discovery of two supernova silica (SiO2) grains in the primitive carbonaceous chondrites LaPaZ 031117 and Grove Mountains 021710. Only five presolar silica grains have been previously reported from laboratory measurements but they all exhibit enrichments in O-17 relative to solar, indicating origins in the envelopes of asymptotic giant branch stars. The two SiO2 grains identified in this study are characterized by moderate enrichments in O-18 relative to solar, indicating that they originated in Type II supernova ejecta. If compared to theoretical models, the oxygen isotopic compositions of these grains can be reproduced by mixing of different supernova zones. While both theoretical models of grain condensation and recent NASA Spitzer Space Telescope observations have suggested the presence of silica in supernova ejecta, no such grains had been identified, until now, in meteorites. The discovery of these two silica grains provides definitive evidence of the condensation of silica dust in supernova ejecta.
WOS关键词SOLAR-SYSTEM ; PRESOLAR GRAINS ; MINERAL FORMATION ; EARLY UNIVERSE ; DUST FORMATION ; STELLAR WINDS ; AGB STARS ; METEORITES ; STARDUST ; RICH
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000317912900017
出版者IOP PUBLISHING LTD
资助机构NASA(NNX12AN77H ; NASA(NNX12AN77H ; Natural Science Foundation of China(40830421) ; Natural Science Foundation of China(40830421) ; NNX10AH43G ; NNX10AH43G ; NNX11AH16G) ; NNX11AH16G) ; NASA(NNX12AN77H ; NASA(NNX12AN77H ; Natural Science Foundation of China(40830421) ; Natural Science Foundation of China(40830421) ; NNX10AH43G ; NNX10AH43G ; NNX11AH16G) ; NNX11AH16G) ; NASA(NNX12AN77H ; NASA(NNX12AN77H ; Natural Science Foundation of China(40830421) ; Natural Science Foundation of China(40830421) ; NNX10AH43G ; NNX10AH43G ; NNX11AH16G) ; NNX11AH16G) ; NASA(NNX12AN77H ; NASA(NNX12AN77H ; Natural Science Foundation of China(40830421) ; Natural Science Foundation of China(40830421) ; NNX10AH43G ; NNX10AH43G ; NNX11AH16G) ; NNX11AH16G)
源URL[http://ir.iggcas.ac.cn/handle/132A11/87552]  
专题中国科学院地质与地球物理研究所
通讯作者Haenecour, Pierre
作者单位1.Washington Univ, Space Sci Lab, McDonnell Ctr Space Sci, St Louis, MO 63130 USA
2.Washington Univ, Dept Phys, St Louis, MO 63130 USA
3.Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Haenecour, Pierre,Zhao, Xuchao,Floss, Christine,et al. FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE[J]. ASTROPHYSICAL JOURNAL LETTERS,2013,768(1).
APA Haenecour, Pierre,Zhao, Xuchao,Floss, Christine,Lin, Yangting,&Zinner, Ernst.(2013).FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE.ASTROPHYSICAL JOURNAL LETTERS,768(1).
MLA Haenecour, Pierre,et al."FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE".ASTROPHYSICAL JOURNAL LETTERS 768.1(2013).

入库方式： OAI收割

来源：地质与地球物理研究所

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