Spectrometric composition of nearby K dwarfs
文献类型：期刊论文
| 作者 | Kotoneva, E.; Shi, J. R.; Zhao, G. ; Liu, Y. J.
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| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2006-08-01 |
| 卷号 | 454期号:3页码:833-U77 |
| 关键词 | stars : abundances stars : low mass, brown dwarfs Galaxy : solar neighbourhood |
| 英文摘要 | We have obtained relatively high resolution spectra of Northern hemisphere K dwarfs. This is the first spectrometric project dedicated only to K dwarfs. Earlier studies have concentrated on more massive F and G dwarfs. However, these stars have already undergone evolutionary effects, unlike K dwarfs, which over more accurate information about the evolution of the Solar neighbourhood. We have determined the LTE abundances of 14 elements for 42 stars with initial metallicity range covered by -1.52 < [Fe/H] < 0.48. We confirm the discrepancy in the abundances derived from neutral and ionized lines. The solution to this problem cannot just be the modification of initial physical parameters, but requires fundamental changes in the modeling of K dwarfs. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239121200021 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7203]  |
| 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.Turku Univ, Piikkio, Finland |
| 推荐引用方式 GB/T 7714 | Kotoneva, E.,Shi, J. R.,Zhao, G.,et al. Spectrometric composition of nearby K dwarfs[J]. ASTRONOMY & ASTROPHYSICS,2006,454(3):833-U77. |
| APA | Kotoneva, E.,Shi, J. R.,Zhao, G.,&Liu, Y. J..(2006).Spectrometric composition of nearby K dwarfs.ASTRONOMY & ASTROPHYSICS,454(3),833-U77. |
| MLA | Kotoneva, E.,et al."Spectrometric composition of nearby K dwarfs".ASTRONOMY & ASTROPHYSICS 454.3(2006):833-U77. |
入库方式： OAI收割
来源：国家天文台
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