中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503

文献类型:期刊论文

作者Shi XD(施相东)1,2,4,5; Qian SB(钱声帮)1,2,4,5; Zhang J(张嘉)1,4,5; Soonthornthum, Boonrucksar3; Sarotsakulchai, Thawicharat1,2,3; Zhou X(周肖)1,3,4,5
刊名NEW ASTRONOMY
出版日期2019-10-01
卷号72页码:28-35
ISSN号1384-1076
关键词Close-binaries Eclipsing-binaries Individual (AST19571 AST21541 and AST38503)
DOI10.1016/j.newast.2019.04.007
产权排序第1完成单位
文献子类Article
英文摘要

AST3-1 is the second-generation optical photometric telescope at Dome A in Antarctica. In this study, photometric solutions of three eclipsing binaries comprising AST19571, AST21541, and AST38503 were determined for the first time using the light curves obtained with AST3-1. The light curves for the three binaries in the Galactic disk field were analyzed with the Wilson-Devinney method. We found that AST19571 and AST21541 are intermediate-contact binary systems with fill-out factors of f = 39.9(+/- 5.4) % and 36.4(+/- 4.7) %, respectively, and their mass ratios were determined as q = 0.275(+/- 0.0034) and 0.25(+/- 0.0024). AST38503 was shown to be a deep-contact binary system with a degree of contact of f = 66(+/- 33)% and a mass ratio of q = 0.314(+/- 0.03). Some light minimum times were derived for the three contact binary stars. The results showed that the period of AST19571 is increasing at a rate of dp/dt = +4.71 x 10(-7). This increase in the period could be explained by mass transfer between the components. The absolute parameters were estimated for the components of the three binaries.

学科主题天文学 ; 恒星与银河系 ; 恒星天文学
URL标识查看原文
出版地PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
WOS关键词LIGHT ; STARS
资助项目National Natural Science Foundation of China[11703082] ; National Natural Science Foundation of China[11703080] ; Yunnan Natural Science Foundation[2018E8006]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000474312400005
资助机构National Natural Science Foundation of China[11703082, 11703080] ; Yunnan Natural Science Foundation[2018E8006]
源URL[http://ir.ynao.ac.cn/handle/114a53/20557]  
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
通讯作者Shi XD(施相东)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming, P. O. Box 110, 650216, China
2.University of Chinese Academy of Sciences, Beijing, Yuquan Road 19#, Sijingshang Block, 100049, China
3.National Astronomical Research Institute of Thailand, Ministry of Science and Technology, Bangkok, Thailand
4.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, P. O. Box 110, 650216, China
5.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China
推荐引用方式
GB/T 7714
Shi XD,Qian SB,Zhang J,et al. First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503[J]. NEW ASTRONOMY,2019,72:28-35.
APA Shi XD,Qian SB,Zhang J,Soonthornthum, Boonrucksar,Sarotsakulchai, Thawicharat,&Zhou X.(2019).First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503.NEW ASTRONOMY,72,28-35.
MLA Shi XD,et al."First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503".NEW ASTRONOMY 72(2019):28-35.

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来源:云南天文台

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