SUPERWASP J015100.23-100524.2: A SPOTTED SHALLOW-CONTACT BINARY BELOW THE PERIOD LIMIT

	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, B 4; He JJ(何家佳)1,2 ; Rattanasoon, S 4; Aukkaravittayapun, S 4; 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
刊名	ASTRONOMICAL JOURNAL
	2015-10
卷号	150 期号:4
关键词	binaries: close binaries: eclipsing stars: evolution stars: individual (J015100)
ISSN号	0004-6256
通讯作者	Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RADIAL-VELOCITY ; LIGHT CURVES ; STARS ; EVOLUTION
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-3881/150/4/117/
语种	英语
WOS记录号	WOS:000365863900020
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5911]
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.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
推荐引用方式 GB/T 7714	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.,...&Thawicharat, S.(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).