RADIAL VELOCITY CURVES OF ELLIPSOIDAL RED GIANT BINARIES IN THE LARGE MAGELLANIC CLOUD
文献类型：期刊论文
| 作者 | Nie, J. D.1; Wood, P. R.2 |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 148期号:6 |
| 关键词 | binaries: close Magellanic Clouds stars: AGB and post-AGB |
| 英文摘要 | Ellipsoidal red giant binaries are close binary systems where an unseen, relatively close companion distorts the red giant, leading to light variations as the red giant moves around its orbit. These binaries are likely to be the immediate evolutionary precursors of close binary planetary nebula and post-asymptotic giant branch and post-red giant branch stars. Due to the MACHO and OGLE photometric monitoring projects, the light variability nature of these ellipsoidal variables has been well studied. However, due to the lack of radial velocity curves, the nature of their masses, separations, and other orbital details has so far remained largely unknown. In order to improve this situation, we have carried out spectral monitoring observations of a large sample of 80 ellipsoidal variables in the Large Magellanic Cloud and we have derived radial velocity curves. At least 12 radial velocity points with good quality were obtained for most of the ellipsoidal variables. The radial velocity data are provided with this paper. Combining the photometric and radial velocity data, we present some statistical results related to the binary properties of these ellipsoidal variables. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000345223200015 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6423]  |
| 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, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia |
| 推荐引用方式 GB/T 7714 | Nie, J. D.,Wood, P. R.. RADIAL VELOCITY CURVES OF ELLIPSOIDAL RED GIANT BINARIES IN THE LARGE MAGELLANIC CLOUD[J]. ASTRONOMICAL JOURNAL,2014,148(6). |
| APA | Nie, J. D.,&Wood, P. R..(2014).RADIAL VELOCITY CURVES OF ELLIPSOIDAL RED GIANT BINARIES IN THE LARGE MAGELLANIC CLOUD.ASTRONOMICAL JOURNAL,148(6). |
| MLA | Nie, J. D.,et al."RADIAL VELOCITY CURVES OF ELLIPSOIDAL RED GIANT BINARIES IN THE LARGE MAGELLANIC CLOUD".ASTRONOMICAL JOURNAL 148.6(2014). |
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