Photometric analysis of a blue straggler eclipsing binary in the old open cluster NGC 2141
文献类型：期刊论文
| 作者 | Luo YangPing1,2,3 ; Wang Bo1,2; Chen HaiLiang1,2,3; Zhang XiaoBin4; Han ZhanWen1,2
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2012-08-01 |
| 卷号 | 55期号:8页码:1500-1504 |
| 关键词 | open cluster eclipsing binary blue straggler photometry |
| 英文摘要 | To understand the formation mechanism of blue stragglers in open clusters, we conducted a photometric analysis for a blue straggler eclipsing binary in the old open cluster NGC 2141. By using the least square fitting of times of minima, we derived the ephemeris and redetermined the orbital period of this system to be 0.6227 d. We have also done a photometric analysis for light curve with the Wilson-Devinney Code (2003). The photometric solutions reveal a semi-detached binary with the secondary component filling its Roche lobe. The photometric mass ratio M (2)/M (1) (secondary/primary) was determined to be 0.190 +/- 0.002 and the ratio of V-band luminosity L (2)/L (1)(V) is about 0.033 +/- 0.001, which indicates the secondary component is overluminous. Thus, this blue straggler likely results from a substantial mass exchange between these two components. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000306176600025 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6117]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China 2.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo YangPing,Wang Bo,Chen HaiLiang,et al. Photometric analysis of a blue straggler eclipsing binary in the old open cluster NGC 2141[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(8):1500-1504. |
| APA | Luo YangPing,Wang Bo,Chen HaiLiang,Zhang XiaoBin,&Han ZhanWen.(2012).Photometric analysis of a blue straggler eclipsing binary in the old open cluster NGC 2141.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(8),1500-1504. |
| MLA | Luo YangPing,et al."Photometric analysis of a blue straggler eclipsing binary in the old open cluster NGC 2141".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.8(2012):1500-1504. |
入库方式： OAI收割
来源：国家天文台
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