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1SWASP J034439.97+030425.5: a short-period eclipsing binary system with a close-in stellar companion
Zhang, Bin1,2; Qian SB(钱声帮)1,2,3,4,5,6; Wang, Jing-Jing7; Zhi, Qi-Jun1,2; Dong, Ai-Jun1,2; Xie, Wei1,2; Zhu LY(朱俐颖)3,4; Jiang, Lin-Qiao8
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2020-04-01
卷号20期号:4页码:8
DOI10.1088/1674-4527/20/4/47
产权排序第3完成单位
收录类别SCI ; CSCD
关键词stars: binaries: close stars: binaries: eclipsing stars: individual (1SWASP J034439.97+030425.5)
摘要

First multi-wavelength photometric light curves (LCs) of the short-period eclipsing binary (EB) 1SWASP J034439.97+030425.5 (hereafter J0344) are presented and analyzed by using the 2013 version of the Wilson-Devinney (W-D) code. To explain the asymmetric LCs of J0344, a cool star-spot on the less massive component was employed. The photometric solutions suggest that J0344 is a W-subtype shallow contact EB with a contact degree of f = 4.9% +/- 3.0% and a mass ratio of q = 2.456 +/- 0.013. Moreover, an obvious third light was detected in our analysis. We calculated the average luminosity contribution of the third light to the total light, and that value reaches up to 49.78%. Based on the O - C method, the variations of the orbital period were studied for the first time. Our O - C diagram reveals a secular decrease superimposed on a cyclic oscillation. The orbital period decreases at a rate of dP/dt = -6.07 x 10(-7) d yr(-1), which can be explained by the mass transfer from the more massive component to the less massive one. Besides, its O - C diagram also shows a cyclic oscillation with an amplitude of 0.0030 d and a period about 7.08 yr, which can be explained by the presence of a third body with a minimum mass of M-3min = 0.15 +/- 0.02 M-circle dot. The third component may play an important role in the formation and evolution of J0344 by drawing angular momentum from the central system.

资助项目Natural Natural Science Foundation of China (NSFC)[U1931101] ; Natural Natural Science Foundation of China (NSFC)[11933008] ; Natural Natural Science Foundation of China (NSFC)[11573063] ; Natural Natural Science Foundation of China (NSFC)[U1731238] ; Natural Natural Science Foundation of China (NSFC)[U1831120] ; Natural Natural Science Foundation of China (NSFC)[11565010] ; Key Science Foundation of Yunnan Province[2017FA001] ; NSFC[11847102] ; NSFC[U1631108] ; NSFC[U1831109] ; Chinese Academy of Sciences (CAS)[U1631108] ; Chinese Academy of Sciences (CAS)[U1831109] ; Sichuan University of Science and Engineering[2015RC42] ; Science Foundation of China University of Petroleum-Beijing At Karamay[RCYJ2016B-03-006] ; Key Laboratory for the Structure and Evolution of Celestial Objects, CAS[OP201708] ; Doctoral Starting up Foundation of Guizhou Normal University[GZNUD[2018] 12] ; Guizhou province's innovation and entrepreneurial project for high-level overseas talents[[2019] 02] ; Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
项目资助者Natural Natural Science Foundation of China (NSFC)[U1931101, 11933008, 11573063, U1731238, U1831120, 11565010] ; Key Science Foundation of Yunnan Province[2017FA001] ; NSFC[11847102, U1631108, U1831109] ; Chinese Academy of Sciences (CAS)[U1631108, U1831109] ; Sichuan University of Science and Engineering[2015RC42] ; Science Foundation of China University of Petroleum-Beijing At Karamay[RCYJ2016B-03-006] ; Key Laboratory for the Structure and Evolution of Celestial Objects, CAS[OP201708] ; Doctoral Starting up Foundation of Guizhou Normal University[GZNUD[2018] 12] ; Guizhou province's innovation and entrepreneurial project for high-level overseas talents[[2019] 02] ; Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星天文学 ; 恒星形成与演化
学科门类理学 ; 理学::天文学
文章类型Article
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
出版地20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS记录号WOS:000529928300001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CONTACT BINARIES ; LIGHT ; VELOCITY ; STARS
CSCD记录号CSCD:6721349
引用统计
被引频次:7[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/114a53/23150
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
作者单位1.School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001, China
2.Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang 550001, China
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
4.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
5.University of Chinese Academy of Sciences, Beijing 100049, China
6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China
7.China University of Petroleum-Beijing at Karamay, Karamay 834000, China
8.School of Physics and Electronic Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
推荐引用方式
GB/T 7714
Zhang, Bin,Qian SB,Wang, Jing-Jing,et al. 1SWASP J034439.97+030425.5: a short-period eclipsing binary system with a close-in stellar companion[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(4):8.
APA Zhang, Bin.,Qian SB.,Wang, Jing-Jing.,Zhi, Qi-Jun.,Dong, Ai-Jun.,...&Jiang, Lin-Qiao.(2020).1SWASP J034439.97+030425.5: a short-period eclipsing binary system with a close-in stellar companion.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(4),8.
MLA Zhang, Bin,et al."1SWASP J034439.97+030425.5: a short-period eclipsing binary system with a close-in stellar companion".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.4(2020):8.
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