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Red giants in the vicinity of open clusters. Field stars

文献类型:期刊论文

作者Pakhomov, Yu. V.1; Antipova, L. I.1; Boyarchuk, A. A.1; Zhao, G.2; Liang, Ya.2
刊名ASTRONOMY REPORTS
出版日期2009-08-01
卷号53期号:8页码:685-702
英文摘要We present a comparative analysis of the atmospheric abundances of red giants in the vicinity of open clusters. The atmospheric parameters, atmospheric abundances, masses, ages, Galactic velocities, and elements of the Galactic orbits are derived for all the studied stars. We have discovered high metal abundances (close to 0.3dex) for five stars, which we classify as super-metal-rich stars. Several stars have lower [Na/Fe] than normal red giants with similar atmospheric parameters. The kinematic characteristics of these stars are somewhat different from those for objects in the Galactic thin disk. We suggest that the observed effect can be explained by inhomogeneity of the chemical composition of gas-dust clouds, which could be due to different rates of SNe II supernovae in different regions of the Galaxy.
收录类别SCI
语种英语
WOS记录号WOS:000268902000001
源URL[http://ir.bao.ac.cn/handle/114a11/7955]  
专题国家天文台_光学天文研究部
作者单位1.Russian Acad Sci, Inst Astron, Moscow V71, Russia
2.Natl Astron Observ, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Pakhomov, Yu. V.,Antipova, L. I.,Boyarchuk, A. A.,et al. Red giants in the vicinity of open clusters. Field stars[J]. ASTRONOMY REPORTS,2009,53(8):685-702.
APA Pakhomov, Yu. V.,Antipova, L. I.,Boyarchuk, A. A.,Zhao, G.,&Liang, Ya..(2009).Red giants in the vicinity of open clusters. Field stars.ASTRONOMY REPORTS,53(8),685-702.
MLA Pakhomov, Yu. V.,et al."Red giants in the vicinity of open clusters. Field stars".ASTRONOMY REPORTS 53.8(2009):685-702.

入库方式: OAI收割

来源:国家天文台

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