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Deep, low mass ratio overcontact binary systems. IV. V410 Aurigae and XY Bootis
Yang YG(杨远贵)1,2,3; Qian SB(钱声帮)1,2; Zhu LY(朱俐颖)1,2,3; Yang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTRONOMICAL JOURNAL
2005-11
Volume130Issue:5Pages:2252-2261
DOI10.1086/496880
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries : Close Binaries : Eclipsing Stars : Evolution Stars : Individual (V410 Aurigae Xy Bootis)
AbstractThe complete charge-coupled device (CCD) light curves in the V, R, and I bands for the eclipsing binary V410 Aur were observed at the Yunnan Observatory in China. Four new light minimum times of V410 Aur were derived from new observations. The photometric solution for V410 Aur was obtained for the first time, while the orbital elements for XY Boo ( observed by Binnendijk in 1971) were reanalyzed by using the latest Wilson-Devinney code. The third light contributions to the total lights of the two binaries are obtained. The results reveal that both systems are A-subtype W UMa binaries with low mass ratios and deep degrees of overcontact (i.e., q(ph) = 0.1428 and f = 52.4% for V410 Aur, and q(ph) = 0.1855 and f = 55.9% for XY Boo). The photometric mass ratios of the two binaries are very consistent with the spectroscopic mass ratios. By combining the spectroscopic elements with our photometric solutions, the absolute photometric parameters for V410 Aur and XY Boo are ( re) determined. Analyzing the orbital periods of the two binaries, it is discovered that their orbital periods show continuous period increases, suggesting that the systems are undergoing mass transfer from the less massive component to the more massive one through the inner Lagrangian point L-1. This kind of binary, with a low mass ratio, a deep degree of overcontact, and a continuous period increase, may coalesce into a rapidly rotating single star due to tidal instability.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6256
URL查看原文
Archive Date2006-11-07
WOS IDWOS:000232977900024
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCONTACT BINARIES ; LIGHT CURVES ; STARS ; PARAMETERS
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5774
Collection双星与变星研究组
Corresponding AuthorYang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences, 100012 Beijing, China
3.Graduate School, Chinese Academy of Sciences, 100012 Beijing, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang YG,Qian SB,Zhu LY,et al. Deep, low mass ratio overcontact binary systems. IV. V410 Aurigae and XY Bootis[J]. ASTRONOMICAL JOURNAL,2005,130(5):2252-2261.
APA Yang YG,Qian SB,Zhu LY,&Yang, YG .(2005).Deep, low mass ratio overcontact binary systems. IV. V410 Aurigae and XY Bootis.ASTRONOMICAL JOURNAL,130(5),2252-2261.
MLA Yang YG,et al."Deep, low mass ratio overcontact binary systems. IV. V410 Aurigae and XY Bootis".ASTRONOMICAL JOURNAL 130.5(2005):2252-2261.
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