Sulphur abundances in disk stars: A correlation with silicon
文献类型：期刊论文
| 作者 | Chen, YQ ; Nissen, PE; Zhao, G; Asplund, M
|
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2002-07-01 |
| 卷号 | 390期号:1页码:225-233 |
| 关键词 | stars : abundances stars : late-type galaxy : evolution |
| 英文摘要 | We have performed new determinations of sulphur and silicon abundances for a sample of 26 disk stars based on high-resolution, high signal-to-noise spectra. The results indicate a solar [S/Fe] for [Fe/H] > -0.3, below which [S/Fe] increases to similar to0.25 dex at [Fe/H] = -1.0. We find that there is a good correlation between [S/H] and [Si/H], indicating the same nucleosynthetic origin of the two elements. It seems that the ratio of sulphur to silicon does not depend on metallicity for [Fe/H] > -1.0. The implications of these results on models for the nucleosynthesis of alpha-capture elements and the chemical evolution of the Galaxy are discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176980000028 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8528]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Uppsala Astron Observ, S-75120 Uppsala, Sweden |
| 推荐引用方式 GB/T 7714 | Chen, YQ,Nissen, PE,Zhao, G,et al. Sulphur abundances in disk stars: A correlation with silicon[J]. ASTRONOMY & ASTROPHYSICS,2002,390(1):225-233. |
| APA | Chen, YQ,Nissen, PE,Zhao, G,&Asplund, M.(2002).Sulphur abundances in disk stars: A correlation with silicon.ASTRONOMY & ASTROPHYSICS,390(1),225-233. |
| MLA | Chen, YQ,et al."Sulphur abundances in disk stars: A correlation with silicon".ASTRONOMY & ASTROPHYSICS 390.1(2002):225-233. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。