CARBON STARS FROM LAMOST DR2 DATA
文献类型：期刊论文
| 作者 | Ji,Wei1,3; Cui,Wenyuan2,3; Liu,Chao1 ; Luo,Ali1; Zhao,Gang1; Zhang,Bo3
|
| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2016-08-31 |
| 卷号 | 226期号:1 |
| 关键词 | catalogs stars: carbon stars: statistics surveys |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/0067-0049/226/1/1 |
| 英文摘要 | ABSTRACT In this work, we present the new catalog of carbon stars from the LAMOST DR2 catalog. In total, 894 carbon stars are identified from multiple line indices measured from the stellar spectra. We are able to identify the carbon stars by combining the CN bands in the red end with C2 and other lines. Moreover, we also classify the carbon stars into spectral sub-types of C–H, C–R, and C–N. These sub-types show distinct features in the multi-dimensional line indices, implying that in the future they can be used to identify carbon stars from larger spectroscopic data sets. While the C–N stars are clearly separated from the others in the line index space, we find no clear separation between the C–R and C–H sub-types. The C–R and C–H stars seem to smoothly transition from one to another. This may hint that the C–R and C–H stars may not be different in their origins, instead their spectra look different because of different metallicities. Due to the relatively low spectral resolution and lower signal-to-noise ratio, the ratio of 12C/13C is not measured and thus the C–J stars are not identified. |
| 语种 | 英语 |
| WOS记录号 | IOP:0067-0049-226-1-1 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/36355]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Key Lab of Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China; liuchao@bao.ac.cn 2.School of Space Science and Physics, Shandong University at Weihai, Weihai 264209, China 3.Department of Physics, Hebei Normal University, Shijiazhuang 050024, China; wenyuancui@126.com |
| 推荐引用方式 GB/T 7714 | Ji,Wei,Cui,Wenyuan,Liu,Chao,et al. CARBON STARS FROM LAMOST DR2 DATA[J]. The Astrophysical Journal Supplement Series,2016,226(1). |
| APA | Ji,Wei,Cui,Wenyuan,Liu,Chao,Luo,Ali,Zhao,Gang,&Zhang,Bo.(2016).CARBON STARS FROM LAMOST DR2 DATA.The Astrophysical Journal Supplement Series,226(1). |
| MLA | Ji,Wei,et al."CARBON STARS FROM LAMOST DR2 DATA".The Astrophysical Journal Supplement Series 226.1(2016). |
入库方式： OAI收割
来源：国家天文台
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