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alpha element abundances in mildly metal-poor stars
Qiu, HM; Zhao, G; Takada-Hidai, M; Chen, YQ; Takeda, Y; Noguchi, K; Sadakane, K; Aoki, W
2002
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
卷号54期号:1页码:103-111
摘要We present [O/Fe] and other alpha-elements/Fe ratios in a sample of 24 mildly metal-poor stars The sample stars are thought to be brighter than 9.0 magnitude and have available uvby photometric data. Also, based on the typical LTE abundance analysis, we find that [Si/Fe] and [Ca/Fe] are correlated with each other. Combining the kinematic data and the metallicity, we can classify the sample stars into three groups. An abundance analysis :shows some evidence that these groups are chemically discrete from each other. Further, the general trend of a decreasing overabundance of the a elements with increasing metallicity has been confirmed.
关键词Stars : Abundances Stars : Chemically Peculiar Stars : Kinematics
收录类别SCI
语种英语
WOS记录号WOS:000174212000014
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8510
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.Tokai Univ, Liberal Arts Educ Ctr, Hiratsuka, Kanagawa 2591292, Japan
3.Univ Tokyo, Inst Astron, Mitaka, Tokyo 1810015, Japan
4.Natl Astron Observ, Mitaka, Tokyo 1818588, Japan
5.Osaka Kyoiku Univ, Astron Inst, Osaka 5828582, Japan
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Qiu, HM,Zhao, G,Takada-Hidai, M,et al. alpha element abundances in mildly metal-poor stars[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2002,54(1):103-111.
APA Qiu, HM.,Zhao, G.,Takada-Hidai, M.,Chen, YQ.,Takeda, Y.,...&Aoki, W.(2002).alpha element abundances in mildly metal-poor stars.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,54(1),103-111.
MLA Qiu, HM,et al."alpha element abundances in mildly metal-poor stars".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 54.1(2002):103-111.
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