Chemical composition of giants from two moving groups
文献类型：期刊论文
| 作者 | Liu, F.1,2; Chen, Y. Q.1; Zhao, G.1 ; Han, I.3; Lee, B. C.3; Kim, K. M.3; Zhao, Z. S.4,5
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012-06-01 |
| 卷号 | 422期号:4页码:2969-2979 |
| 关键词 | stars: abundances stars: fundamental parameters Galaxy: evolution open clusters and associations: individual: moving group 6 open clusters and associations: individual: moving group 7 |
| 英文摘要 | We present the stellar parameters of 19 K-type giants and their abundances for 13 chemical elements (Al, Ba, Ca, Fe, K, Mg, Mn, Na, Ni, Sc, Si, Ti and V), selected from two moving groups, covering the metallicity range of -0.6 < [Fe/H] < 0.2, based on high-resolution spectra. Most of the elemental abundances show similar trends as in previous studies, except for Al, Na and Ba, which are seriously affected by evolution. The abundance ratios of [Na/Mg] increase smoothly with higher [Mg/H], and those of [Al/Mg] decrease slightly with increasing [Mg/H]. The abundance ratios of [Mg/Ba] show a distinction between these two moving groups, which is mainly induced by chemical evolution and also partly by kinematic effects. The inhomogeneous metallicity of each star from the moving groups demonstrates that these stars had different chemical origins before they were kinematically aggregated. This favours a dynamical resonant theory. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000304246100014 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6123]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Korea Astron & Space Sci Inst, Taejon 305348, South Korea 4.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 5.Grad Univ Adv Studies, Hayama, Kanagawa 2400193, Japan |
| 推荐引用方式 GB/T 7714 | Liu, F.,Chen, Y. Q.,Zhao, G.,et al. Chemical composition of giants from two moving groups[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,422(4):2969-2979. |
| APA | Liu, F..,Chen, Y. Q..,Zhao, G..,Han, I..,Lee, B. C..,...&Zhao, Z. S..(2012).Chemical composition of giants from two moving groups.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,422(4),2969-2979. |
| MLA | Liu, F.,et al."Chemical composition of giants from two moving groups".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 422.4(2012):2969-2979. |
入库方式： OAI收割
来源：国家天文台
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