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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
Source PublicationASTRONOMICAL JOURNAL
2015-10
Volume150Issue:4
DOI10.1088/0004-6256/150/4/117
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (J015100)
Abstract

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.

Funding ProjectChinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[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]
Funding OrganizationChinese 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]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
Archive Date2015-10-21
WOS IDWOS:000365863900020
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordRADIAL-VELOCITY ; LIGHT CURVES ; STARS ; EVOLUTION
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5911
Collection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
Corresponding AuthorQian SB(钱声帮)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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).
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