YNAO OpenIR  > 双星与变星研究组
First photometric investigations of three eclipsing binaries: AST19571, AST21541, and AST38503
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
发表期刊NEW ASTRONOMY
2019-10-01
卷号72页码:28-35
DOI10.1016/j.newast.2019.04.007
产权排序第1完成单位
收录类别SCI
关键词Close-binaries Eclipsing-binaries Individual (AST19571 AST21541 and AST38503)
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.

资助项目National Natural Science Foundation of China[11703082] ; National Natural Science Foundation of China[11703080] ; Yunnan Natural Science Foundation[2018E8006]
项目资助者National Natural Science Foundation of China[11703082, 11703080] ; Yunnan Natural Science Foundation[2018E8006]
语种英语
学科领域天文学 ; 恒星与银河系 ; 恒星天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者ELSEVIER SCIENCE BV
出版地PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN1384-1076
URL查看原文
WOS记录号WOS:000474312400005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LIGHT ; STARS
引用统计
被引频次:2[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/114a53/20558
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
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
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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