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SUPERWASP J015100.23-100524.2: A SPOTTED SHALLOW-CONTACT BINARY BELOW THE PERIOD LIMIT
Qian SB(钱声帮)1,2,3; Zhang B(张斌)1,2,3; Soonthornthum, B4; He JJ(何家佳)1,2; Rattanasoon, S4; Aukkaravittayapun, S4; Liu L(刘亮)1,2,3; Zhu LY(朱俐颖)1,2,3; Zhao EG(赵二刚)1,2,3; Zhou X(周肖)1,2,3; Thawicharat, S1,3,4; Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2015-10
卷号150期号:4
DOI10.1088/0004-6256/150/4/117
产权排序第1完成单位
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (J015100)
摘要SuperWASP J015100.23-100524.2 (hereafter J015100) is an eclipsing binary with an orbital period of 0(d).2145 that is below the short-period limit of contact binary stars. Complete light curves of J015100 in B, V, R, and I bands are presented and are analyzed with the Wilson-Devinney method. It has been discovered that J015100 is a shallow-contact binary (f = 14.6(+/- 2.7)%) with a mass ratio of 3.128. It is a W-type contact binary where the less massive component is about 130 K hotter than the more massive one. The asymmetries of light curves are explained as one dark spot on the more massive component. The detection of J015100 as a contact binary below the period limit suggests that contact binaries below this limit are not rapidly destroyed. This shallow-contact system may be formed from a detached short-period binary similar to DV Psc (Sp. = K4/K5; P = 0(d).30855) via orbital shrinkage due to angular momentum loss through magnetic stellar wind.
项目资助者Chinese Natural Science Foundation [11133007, 11325315] ; Key Research Program of the Chinese Academy of Sciences [KGZD-EW-603] ; Science Foundation of Yunnan Province [2012HC011] ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences [XDB09010202]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2015-10-21
WOS记录号WOS:000365863900020
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]RADIAL-VELOCITY ; LIGHT CURVES ; STARS ; EVOLUTION
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5911
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Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650011 Kunming, P.R. China
2.Key laboratory of the structure and evolution celestial bodies, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China
3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Sijingshang Block, 100049 Beijing, P. R. China
4.National Astronomical Research Institute of Thailand, 191 Siriphanich Bldg., Huay Kaew Road, Chiang Mai 50200, Thailand
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Qian SB,Zhang B,Soonthornthum, B,et al. SUPERWASP J015100.23-100524.2: A SPOTTED SHALLOW-CONTACT BINARY BELOW THE PERIOD LIMIT[J]. ASTRONOMICAL JOURNAL,2015,150(4).
APA Qian SB.,Zhang B.,Soonthornthum, B.,He JJ.,Rattanasoon, S.,...&Qian, SB .(2015).SUPERWASP J015100.23-100524.2: A SPOTTED SHALLOW-CONTACT BINARY BELOW THE PERIOD LIMIT.ASTRONOMICAL JOURNAL,150(4).
MLA Qian SB,et al."SUPERWASP J015100.23-100524.2: A SPOTTED SHALLOW-CONTACT BINARY BELOW THE PERIOD LIMIT".ASTRONOMICAL JOURNAL 150.4(2015).
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