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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; Zhang, Bin(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China)
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2018-03-01
卷号18期号:3
DOI10.1088/1674-4527/18/3/30
产权排序第1完成单位
收录类别SCI
关键词Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (1swasp j140533.33+114639.1)
摘要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.
项目资助者National Natural Science Foundation of China(11133007, 11573063) ; Science Foundation of Yunnan Province(2012HC011)
语种英语
学科领域天文学
文章类型Article
ISSN1674-4527
URL查看原文
WOS记录号WOS:000428268500006
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]UMA-TYPE BINARIES ; ECLIPSING BINARIES ; WUMA-TYPE ; LIGHT CURVES ; STARS ; LIMIT ; COMAE
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被引频次:1[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/114a53/12211
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Zhang, Bin(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China)
作者单位1.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
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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,&Zhang, Bin.(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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