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Lithium abundance of metal-poor stars
Zhang, HW; Zhao, G
2003-10-01
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
卷号3期号:5页码:453-457
摘要High-resolution, high signal-to-noise ratio spectra have been obtained for 32 metal-poor stars. The equivalent widths of Li lambda6708 Angstrom were measured and the lithium abundances were derived. The average lithium abundance of 21 stars on the lithium plateau is 2.33+/-0.02 dex. The Lithium plateau exhibits a marginal trend along metallicity, dA(Li)/d[Fe/H] = 0.12+/-0.06, and no clear trend with the effective temperature. The trend indicates that the abundance of lithium plateau may not be primordial and that a part of the lithium was produced in Galactic Chemical Evolution (GCE).
关键词Stars : Abundances Stars : Population Ii Galaxy : Evolution
收录类别SCI
语种英语
WOS记录号WOS:000186358900008
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8465
专题光学天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China
3.Peking Univ, Chinese Acad Sci, Joint Beijing Astrophys Ctr, Beijing 100871, Peoples R China
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Zhang, HW,Zhao, G. Lithium abundance of metal-poor stars[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2003,3(5):453-457.
APA Zhang, HW,&Zhao, G.(2003).Lithium abundance of metal-poor stars.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,3(5),453-457.
MLA Zhang, HW,et al."Lithium abundance of metal-poor stars".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 3.5(2003):453-457.
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