FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE

doi:10.1088/2041-8205/768/1/L17

	FIRST LABORATORY OBSERVATION OF SILICA GRAINS FROM CORE COLLAPSE SUPERNOVAE
	Haenecour, Pierre 1,2,3; Zhao, Xuchao 4; Floss, Christine 1,2; Lin, Yangting 4; Zinner, Ernst 1,2,3
刊名	ASTROPHYSICAL JOURNAL LETTERS
	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
DOI	10.1088/2041-8205/768/1/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
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000317912900017
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)
内容类型	期刊论文
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).