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First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1
Zhang B(张斌)1,2,3; Qian SB(钱声帮)1,2,3; Michel, Ri4; Soonthornthum, Boonrucksar5; Zhu LY(朱俐颖)1,2,3
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2018-03-01
Volume18Issue:3
DOI10.1088/1674-4527/18/3/30
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (1swasp j140533.33+114639.1)
Abstract

In this paper, CCD photometric light curves for the short-period eclipsing binary 1SWASP J140533.33+114639.1 (hereafter J1405) in the BVR bands are presented and analyzed using the 2013 version of the Wilson-Devinney (W-D) code. It is discovered that J1405 is a W-subtype shallow contact binary with a contact degree of f = 7.9 +/- 0.5% and amass ratio of q = 1.55 +/- 0.02. In order to explain the asymmetric light curves of the system, a cool starspot on the more massive component is employed. This shallow contact eclipsing binary may have been formed from a short-period detached system through orbital shrinkage due to angular momentum loss. Based on the (O - C) method, the variation of orbital period is studied using all the available times of minimum light. The (O - C) diagram reveals that the period is increasing continuously at a rate of dP/dt = +2. 0 9 x 10(-7) dyr(-1), which can be explained by mass transfer from the less massive component to the more massive one.

Funding ProjectNational Natural Science Foundation of China[11133007] ; National Natural Science Foundation of China[11573063] ; Science Foundation of Yunnan Province[2012HC011]
Funding OrganizationNational Natural Science Foundation of China[11133007, 11573063] ; Science Foundation of Yunnan Province[2012HC011]
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS IDWOS:000428268500006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordUMA-TYPE BINARIES ; ECLIPSING BINARIES ; WUMA-TYPE ; LIGHT CURVES ; STARS ; LIMIT ; COMAE
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12211
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 AuthorZhang B(张斌)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Instituto de Astronomía, UNAM, Ensenada, México
5.National Astronomical Research Institute of Thailand, 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
Zhang B,Qian SB,Michel, Ri,et al. First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(3).
APA Zhang B,Qian SB,Michel, Ri,Soonthornthum, Boonrucksar,&Zhu LY.(2018).First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(3).
MLA Zhang B,et al."First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.3(2018).
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