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1SWASP J075102.16+342405.3: A deep overcontact binary system with a period under the short period cut-off
Jiang, LQ1; Qian SB(钱声帮)2,3,4; Zhang J(张嘉)2,3; Liu NP(刘念平)2,3; Jiang, LQ (reprint author), Sichuan Univ Sci & Engn, Sch Sci, Dept Phys, Zigong 643000, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2015-12
卷号67期号:6
DOI10.1093/pasj/psv092
产权排序第2完成单位
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Individual (1swasp j075102.16+342405.3)
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.
项目资助者Chinese Natural Science Foundation(11133007,11325315) ; Strategic Priority Research Program "The Emergence of Cosmological Structure" of the Chinese Academy of Sciences(XDB09010202) ; Science Foundation of Yunnan Province(2012HC011)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6264
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WOS记录号WOS:000366859800018
WOS研究方向Astronomy & Astrophysics
WOS类目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
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9392
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Jiang, LQ (reprint author), Sichuan Univ Sci & Engn, Sch Sci, Dept Phys, Zigong 643000, Peoples R China.
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
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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,&Jiang, LQ .(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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