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 YP(罗杨平)1,2,3 ; Wang B(王博)1,2; Chen HL(陈海亮)1,2,3; Zhang, XB4; Han ZW(韩占文)1,2
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2012-08 |
| 卷号 | 55期号:8页码:1500-1504 |
| 关键词 | open cluster eclipsing binary blue straggler photometry |
| ISSN号 | 1674-7348 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Luo, YP (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 分类号 | P153 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | MASS-TRANSFER ; LIGHT CURVES ; STAR LIGHT ; EVOLUTION ; MODELS |
| 收录类别 | SCI ; EI |
| 原文出处 | http://link.springer.com/article/10.1007%2Fs11433-012-4814-6 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306176600025 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4526]  |
| 专题 | 云南天文台_大样本恒星演化研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650011, China 3.Graduate University of Chinese Academy of Sciences, Beijing, 100049, China 4.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China |
| 推荐引用方式 GB/T 7714 | Luo YP,Wang B,Chen HL,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 YP,Wang B,Chen HL,Zhang, XB,&Han ZW.(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 YP,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. |
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来源：云南天文台
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