therosatbrightsource1rxsj2016070251645anactivealgoltypebinary
文献类型：期刊论文
| 作者 | HuaLi Li; YuanGui Yang; Wei Su; HuiJuan Wang ; JianYan Wei
|
| 刊名 | researchinastronomyandastrophysics
 |
| 出版日期 | 2009 |
| 卷号 | 9期号:9页码:1035 |
| ISSN号 | 1674-4527 |
| 英文摘要 | 1RXS J201607.0+251645 is identified as an eclipsing binary. We present preliminary observations in the V band with the 0.6-m telescope for three years and extensive observations in the V and R bands with the 0.8-m telescope for six nights, respectively. The light curve of the system is EB type. Five light minimum times were obtained and the orbital period of 0.388058(d)(+/-0.00044(d)) is determined. The photometric solution given by the 2003-version of the Wilson-Devinney program suggests that the binary is a semidetached system with photometric mass ratio 0.895(+/-0.006), which is probably comprised of a G5 primary and an oversized K5 secondary. The less massive component has completely filled its Roche lobe, while the other one almost fills its Roche lobe with a filling factor of 93.4%. The system shows a varying O'Connell effect in its phase folded diagrams from 2005 to 2007, and is X-ray luminous with log L-X/L-bol similar to -3.27. Possible mechanisms to account for these two phenomena are discussed. Finally, we infer that the binary may be in thermal oscillation or may evolve into a contact binary. |
| 资助项目 | [National Natural Science Foundation of China] ; [Physik at Garching, Germany] ; [CDS, Strausbourg, France] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/39899]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | HuaLi Li,YuanGui Yang,Wei Su,et al. therosatbrightsource1rxsj2016070251645anactivealgoltypebinary[J]. researchinastronomyandastrophysics,2009,9(9):1035. |
| APA | HuaLi Li,YuanGui Yang,Wei Su,HuiJuan Wang,&JianYan Wei.(2009).therosatbrightsource1rxsj2016070251645anactivealgoltypebinary.researchinastronomyandastrophysics,9(9),1035. |
| MLA | HuaLi Li,et al."therosatbrightsource1rxsj2016070251645anactivealgoltypebinary".researchinastronomyandastrophysics 9.9(2009):1035. |
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来源：国家天文台
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