photometricanalysisofabluestragglereclipsingbinaryintheoldopenclusterngc2141
文献类型：期刊论文
| 作者 | Luo Yangping1; Wang Bo1; Chen Hailiang1; Zhang Xiaobin2 ; Han Zhanwen1
|
| 刊名 | sciencechinaphysicsmechanicsastronomy
 |
| 出版日期 | 2012 |
| 卷号 | 55期号:8页码:1500 |
| ISSN号 | 1674-7348 |
| 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 M2/M1 (secondary/primary) was determined to be 0.190±0.002 and the ratio of V-band luminosity L2/L1(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. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37533]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Luo Yangping,Wang Bo,Chen Hailiang,et al. photometricanalysisofabluestragglereclipsingbinaryintheoldopenclusterngc2141[J]. sciencechinaphysicsmechanicsastronomy,2012,55(8):1500. |
| APA | Luo Yangping,Wang Bo,Chen Hailiang,Zhang Xiaobin,&Han Zhanwen.(2012).photometricanalysisofabluestragglereclipsingbinaryintheoldopenclusterngc2141.sciencechinaphysicsmechanicsastronomy,55(8),1500. |
| MLA | Luo Yangping,et al."photometricanalysisofabluestragglereclipsingbinaryintheoldopenclusterngc2141".sciencechinaphysicsmechanicsastronomy 55.8(2012):1500. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。