Spectral classification of the cool components of symbiotic stars
文献类型：期刊论文
| 作者 | Zhu, ZX ; Friedjung, M; Huang, CC
|
| 刊名 | CHINESE ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 1999-04-01 |
| 卷号 | 23期号:2页码:195-207 |
| 关键词 | symbiotic star near infrared spectrum spectral classification |
| ISSN号 | 0275-1062 |
| 英文摘要 | We have made near infrared spectroscopic observations of 10 symbiotic and 27 K-M comparison stars. For stars later than M3, we found the band depth of the triple-headed TiO absorption band to be sensitive to temperature and insensitive to gravity. We fitted the spectral type to the band depth with a standard error of 0.22 of a subtype and derived the spectral types for 6 symbiotic stars. We measured the EW of a large number of lines including the Ca II lines (very sensitive to luminosity), the Fe I and TiO lines (moderately sensitive) and the Na I lines (not sensitive). The EW of these lines vary with the spectral type, particularly for stars later than M3, both spectral type and luminosity effects must be considered. We give the luminosity classes for 10 of the brighter symbiotic stars, they are all giant stars, showing no features of bright giants or supergiants. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000083010900010 |
| 公开日期 | 2013-02-01 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8320]  |
| 专题 | 紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Inst Astrophys, F-75014 Paris, France |
| 推荐引用方式 GB/T 7714 | Zhu, ZX,Friedjung, M,Huang, CC. Spectral classification of the cool components of symbiotic stars[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,1999,23(2):195-207. |
| APA | Zhu, ZX,Friedjung, M,&Huang, CC.(1999).Spectral classification of the cool components of symbiotic stars.CHINESE ASTRONOMY AND ASTROPHYSICS,23(2),195-207. |
| MLA | Zhu, ZX,et al."Spectral classification of the cool components of symbiotic stars".CHINESE ASTRONOMY AND ASTROPHYSICS 23.2(1999):195-207. |
入库方式： OAI收割
来源：紫金山天文台
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