1SWASP J075102.16+342405.3: A deep overcontact binary system with a period under the short period cut-off
文献类型：期刊论文
| 作者 | Jiang, LQ1 ; Qian SB(钱声帮)2,3,4; Zhang J(张嘉)2,3; Liu NP(刘念平)2,3
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2015-12 |
| 卷号 | 67期号:6 |
| 关键词 | binaries: close binaries: eclipsing stars: individual (1SWASP J075102.16+342405.3) |
| ISSN号 | 0004-6264 |
| 产权排序 | 第2完成单位 |
| 通讯作者 | Jiang, LQ (reprint author), Sichuan Univ Sci & Engn, Sch Sci, Dept Phys, Zigong 643000, Peoples R China. |
| 英文摘要 | New photometry of two different seasons for the extremely short period eclipsing binary 1SWASP J075102.16+342405.3 were performed. The two sets of derived light curves show a large difference in their shape, i.e., the 2013 light curves show big asymmetry, whereas the 2014 light curve is almost symmetric. All light curves were analysed using the 2013 version of the Wilson-Devinney (W-D) code. The obtained solutions show that 1SWASP J075102.16+342405.3 is of the A subtype WUMa contact system with an extremely high fill-out of f approximate to 96% and a high mass ratio of 0.70-0.78. Furthermore, a third light contributing to the total flux of the system was found. All these properties make the system a very special short-period source. The analysis of the 2013 light curves proved that the changes in the light curve shape are caused by magnetic activities. By means of all available times of minimum light, the variation of the orbital period was studied. It was found that the O-C diagram implies an increasing orbital period over a time span of eight years, which may be caused by the mass transfer from the less massive component to the more massive one; however, we are more inclined to say that it is only a part of a long period cyclic variation which can be explained by the light-travel time effect (LTTE) via the third body. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CC-COMAE BERENICES ; CONTACT BINARY ; SDSS J001641-000925 ; ECLIPSING BINARIES ; VELOCITY CURVES ; LIGHT CURVES ; STAR LIGHT ; LIMIT ; MASS ; PARAMETERS |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/67/6/118 |
| 语种 | 英语 |
| WOS记录号 | WOS:000366859800018 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9392]  |
| 专题 | 云南天文台_双星与变星研究组 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.Department of Physics, School of Science, Sichuan University of Science & Engineering, Zigong, 643000, China 2.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China 3.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China 4.Graduate University of the Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, 100049 Beijing City, China |
| 推荐引用方式 GB/T 7714 | Jiang, LQ,Qian SB,Zhang J,et al. 1SWASP J075102.16+342405.3: A deep overcontact binary system with a period under the short period cut-off[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2015,67(6). |
| APA | Jiang, LQ,Qian SB,Zhang J,&Liu NP.(2015).1SWASP J075102.16+342405.3: A deep overcontact binary system with a period under the short period cut-off.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,67(6). |
| MLA | Jiang, LQ,et al."1SWASP J075102.16+342405.3: A deep overcontact binary system with a period under the short period cut-off".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 67.6(2015). |
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来源：云南天文台
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