A principal component analysis of the equivalent widths of spectral lines of star cluster's
文献类型：期刊论文
| 作者 | Li, C ; Kong, X; Cheng, FZ
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| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2002-10-01 |
| 卷号 | 26期号:4页码:432-441 |
| 关键词 | method : data analysis star : abundance Galaxy : globular cluster Galaxy : open clusters Galaxies : Magellanic Clouds |
| 英文摘要 | Using principal component analysis, we have studied the equivalent widths of optical spectral lines of 41 Galactic globular clusters and 22 young stellar clusters. We have discovered that some characteristic spectral lines, such as the CN, Ca IIK, Ca IIH and Mg I+Mg II lines, are rather sensitive to metallicity. We have also found some lines that may be used as indicators of age, e.g. Hdelta, Hgamma, Hbeta and Halpha. These lines can help us to disentangle the coupling effects of age and metallicity in the clusters. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000180030600007 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8633]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Peoples R China 2.Acad Sinica, Natl Astron Observ, Beijing 100012, Peoples R China 3.Beijing Astrophys Ctr, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, C,Kong, X,Cheng, FZ. A principal component analysis of the equivalent widths of spectral lines of star cluster's[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2002,26(4):432-441. |
| APA | Li, C,Kong, X,&Cheng, FZ.(2002).A principal component analysis of the equivalent widths of spectral lines of star cluster's.CHINESE ASTRONOMY AND ASTROPHYSICS,26(4),432-441. |
| MLA | Li, C,et al."A principal component analysis of the equivalent widths of spectral lines of star cluster's".CHINESE ASTRONOMY AND ASTROPHYSICS 26.4(2002):432-441. |
入库方式： OAI收割
来源：国家天文台
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