BVRCIC light curves, period and spectroscopic study of a low mass-ratio contact binary HV Aqr

doi:10.1016/j.newast.2022.101989

	BVRCIC light curves, period and spectroscopic study of a low mass-ratio contact binary HV Aqr
	Zubairi, Ahmed Waqas 5,6,7,8; Zhou X(周肖)5,6,8; Fernández Lajús, Eduardo 3,4; Zhu LY(朱俐颖)5,6,7,8; Liao WP(廖文萍)5,6,7,8; Soonthornthum, Boonrucksar 2; Zhang, Bin 1; Sarotsakulchai, Nopphadon 2
刊名	NEW ASTRONOMY
	2023-05
卷号	100
关键词	Binaries Eclipsing binaries Spectroscopic stellar Evolution individual HV Aqr
ISSN号	1384-1076
DOI	10.1016/j.newast.2022.101989
产权排序	第1完成单位
文献子类	Article
英文摘要	New BVRCIC light curves of the short period binary system, HV Aqr, are presented. Photometric solutions were derived using the 2015 version of Wilson-Devinney code. The characteristics of complete eclipses showing in the light curves enable us to determine high-precision photometric parameters of the binary system. We have derived q = 0.159 from our observations and q = 0.149 from the TESS data. The degree of contact is f = 56.21% and f = 49.58% from our observations and TESS data, respectively. Based on all available times of light minimum, we analyzed the long-term period changes. A decrease rate of dP/dt = -1.29x10-7 days/yr was determined. The continuous period decrease can be explained by mass transfer from the primary component to the secondary and angular momentum loss via magnetic braking. A conservative mass transfer rate of 2.17 x 10-8 M AE yr-1 was derived. As the orbital period decreases, its contact of degree will become deeper and it will evolve into a single rapid-rotating star finally.
学科主题	天文学 ; 恒星与银河系 ; 恒星形成与演化
URL标识	查看原文
出版地	RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
资助项目	National Natural Science Foundation of China[11933008] ; National Natural Science Foundation of China[11873017] ; National Natural Science Foundation of China ; Chinese Academy of Sciences[U1931101] ; basic research project of Yunnan Province[202201AT070092] ; Chinese Academy of Sciences (CAS) ; World Academy of Sciences (TWAS)
WOS关键词	ADDITIONAL COMPONENTS ; PHYSICAL PARAMETERS ; RADIAL-VELOCITY ; SYSTEMS ; DEEP ; UMA ; INSTABILITY ; TELESCOPE ; SEARCH ; STARS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000912318800001
资助机构	National Natural Science Foundation of China[11933008, 11873017] ; National Natural Science Foundation of China ; Chinese Academy of Sciences[U1931101] ; basic research project of Yunnan Province[202201AT070092] ; Chinese Academy of Sciences (CAS) ; World Academy of Sciences (TWAS)
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/25801]
专题	云南天文台_双星与变星研究组
通讯作者	Zhou X(周肖)
作者单位	1.School of Physics and Electronic Science, Guizhou Normal University, 550001 Guiyang, China 2.National Astronomical Research Institute of Thailand, 260 Moo 4, T. Donkaew, A. Maerim, Chiangmai, 50180, Thailand; 3.Instituto de Astrofísica de La Plata (CCT La Plata – CONICET/UNLP), 1900 La Plata, Argentina; 4.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosques/n, 1900 La Plata, Buenos Aires, Argentina; 5.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, China; 6.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China; 7.University of Chinese Academy of Sciences, Yuquan Road 19, Sijingshang Block, 100049 Beijing, China; 8.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
推荐引用方式 GB/T 7714	Zubairi, Ahmed Waqas,Zhou X,Fernández Lajús, Eduardo,et al. BVRCIC light curves, period and spectroscopic study of a low mass-ratio contact binary HV Aqr[J]. NEW ASTRONOMY,2023,100.
APA	Zubairi, Ahmed Waqas.,Zhou X.,Fernández Lajús, Eduardo.,Zhu LY.,Liao WP.,...&Sarotsakulchai, Nopphadon.(2023).BVRCIC light curves, period and spectroscopic study of a low mass-ratio contact binary HV Aqr.NEW ASTRONOMY,100.
MLA	Zubairi, Ahmed Waqas,et al."BVRCIC light curves, period and spectroscopic study of a low mass-ratio contact binary HV Aqr".NEW ASTRONOMY 100(2023).