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The abundance patterns of Sirius and Vega
Qiu, HM; Zhao, G; Chen, YQ; Li, ZW
2001-02-20
发表期刊ASTROPHYSICAL JOURNAL
卷号548期号:2页码:953-965
摘要On the basis of high-resolution echelle spectra obtained with the Coude Echelle Spectrograph attached to the 2.16 m telescope at the Beijing Astronomical Observatory (Xinglong, China) for Sirius and Vega, we performed an elemental abundance analysis of 29 ions, in which 23 elements are included, with T(eff) = 9880, log g = 4.40, [Fe/H] = 0.50, and xi (t) = 1.85 km s(-1) for Sirius and T(eff) = 9430, log g = 3.95, [Fe/H] = -0.57, and xi (t) = 1.50 km s(-1) for Vega. The results show different abundance patterns for these two stars. The iron peak elements seem to be enhanced by about 1.0 dex in Sirius relative to Vega. Comparison with previous investigations is present.
关键词Stars : Abundances Stars : Early-type Stars : Individual (Sirius a Vega)
收录类别SCI
语种英语
WOS记录号WOS:000167204900037
引用统计
被引频次:29[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/114a11/8586
专题光学天文研究部
作者单位1.Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
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Qiu, HM,Zhao, G,Chen, YQ,et al. The abundance patterns of Sirius and Vega[J]. ASTROPHYSICAL JOURNAL,2001,548(2):953-965.
APA Qiu, HM,Zhao, G,Chen, YQ,&Li, ZW.(2001).The abundance patterns of Sirius and Vega.ASTROPHYSICAL JOURNAL,548(2),953-965.
MLA Qiu, HM,et al."The abundance patterns of Sirius and Vega".ASTROPHYSICAL JOURNAL 548.2(2001):953-965.
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