A photometric study of a total-eclipse contact binary V458 Mon

doi:10.1016/j.newast.2024.102250

YNAO OpenIR > 双星与变星研究组

	A photometric study of a total-eclipse contact binary V458 Mon
	Zubairi, Ahmed Waqas1,2 ; Zhao EG(赵二刚)1,3,4 ; He JJ(何家佳)1,3,4 ; Li FX(李福兴)1,3,4 ; Zhu LY(朱俐颖)1,2,3,4 ; Matekov, Azizbek1,2,5
发表期刊	NEW ASTRONOMY
	2024-10
卷号	111
DOI	10.1016/j.newast.2024.102250
产权排序	第1完成单位
收录类别	SCI
关键词	Binaries Eclipsing - stellar Evolution - individual V458 Mon
摘要	We present light curve solution of V458 Mon firstly by using the Wilson-Devinney code. The total eclipse and deep minima of the light curves of V458 Mon enable us to determine reliable orbital parameters of the binary system. The solution suggests that V458 Mon is a low mass ratio binary system with about 0.2 possessing a moderate degree of contact. The long-term period investigation showed that the period of V458 Mon is increasing at dP / dt = +2 . 59 x 10 -7 days / yr, which could be the reason of mass transfer from the less massive component to more massive primary one, together with a periodic change. The oscillation in orbital period may be due to an unseen tertiary companion with the mass about M 3 = 1 . 8 M ae . After removing these change, there is still a weak cyclic change maybe due to magnetic activity. With the increase in orbital period of binary, the separation increases and mass ratio decreases which eventually leads V458 Mon towards merger.
资助项目	International Cooperation Projects of the National Key R&D Program, PR China[2022YFE0127300]; Chinese Natural Science Foundation, PR China[11933008]; International Partnership Program of Chinese Academy of Sciences, PR China[020GJHZ2023030GC]; Yunnan Revitalization Talent Support Program, PR China; NASA's Science Mission Directorate; Chinese Academy of Sciences (CAS); World Academy of Sciences (TWAS), PR China
项目资助者	International Cooperation Projects of the National Key R&D Program, PR China[2022YFE0127300] ; Chinese Natural Science Foundation, PR China[11933008] ; International Partnership Program of Chinese Academy of Sciences, PR China[020GJHZ2023030GC] ; Yunnan Revitalization Talent Support Program, PR China ; NASA's Science Mission Directorate ; Chinese Academy of Sciences (CAS) ; World Academy of Sciences (TWAS), PR China
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Article
出版者	ELSEVIER
出版地	RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN	1384-1076
URL	查看原文
WOS记录号	WOS:001246122900001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ORBITAL PERIOD MODULATION ; MASS-RATIO ; LIGHT CURVES ; EVOLUTION ; BRIGHT ; STARS ; DEEP ; INSTABILITY ; CATALOG ; SYSTEMS
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27397
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
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences (CAS), 650216 Kunming, PR China; 2.University of Chinese Academy of Sciences, No. 1 Yanqihu East Rd, Huairou District, Beijing, 101408, PR China; 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, PR China; 4.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, PR China; 5.Ulugh Beg Astronomical Institute, Uzbekistan Academy of Sciences, 33 Astronomicheskaya str., Tashkent, 100052, Uzbekistan
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Zubairi, Ahmed Waqas,Zhao EG,He JJ,et al. A photometric study of a total-eclipse contact binary V458 Mon[J]. NEW ASTRONOMY,2024,111.
APA	Zubairi, Ahmed Waqas,赵二刚,何家佳,李福兴,朱俐颖,&Matekov, Azizbek.(2024).A photometric study of a total-eclipse contact binary V458 Mon.NEW ASTRONOMY,111.
MLA	Zubairi, Ahmed Waqas,et al."A photometric study of a total-eclipse contact binary V458 Mon".NEW ASTRONOMY 111(2024).

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