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Orbital evolution of algol binaries with a circumbinary disk
Chen, WC1; Li, XD1; Qian SB(钱声帮)2; Chen, WC (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2006-10-01
Volume649Issue:2Pages:973-978
DOI10.1086/506433
Contribution Rank第2完成单位
Indexed BySCI
KeywordBinaries : Close Circumstellar Matter Stars : Evolution Stars : General Stars : Mass Loss
AbstractIt is generally thought that conservative mass transfer in Algol binaries causes their orbits to be wider, so that the less massive star overflows its Roche lobe. The observed decrease in the orbital periods of some Algol binaries suggests orbital angular momentum loss during the binary evolution, and the magnetic braking mechanism is often invoked to explain the observed orbital shrinkage. Here we suggest an alternative explanation, in which a small fraction of the transferred mass forms a circumbinary disk, which extracts orbital angular momentum from the binary through tidal torques. We also perform numerical calculations of the evolution of Algol binaries with typical initial masses and orbital periods. The results indicate that, for reasonable input parameters, the circumbinary disk can significantly influence the orbital evolution, and cause the orbit to shrink on a sufficiently long timescale. Rapid mass transfer in Algol binaries with low mass ratios can also be accounted for in this scenario.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:000240854200036
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordANGULAR-MOMENTUM LOSS ; LOW-MASS STARS ; X-RAY BINARIES ; CATACLYSMIC VARIABLES ; ABSOLUTE PARAMETERS ; SPECTROSCOPIC ORBIT ; STELLAR EVOLUTION ; MAGNETIC ACTIVITY ; SYSTEMS ; GEMINORUM
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Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5786
Collection双星与变星研究组
Corresponding AuthorChen, WC (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
Affiliation1.Department of Astronomy, Nanjing University, Nanjing 210093, China
2.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China
Recommended Citation
GB/T 7714
Chen, WC,Li, XD,Qian SB,et al. Orbital evolution of algol binaries with a circumbinary disk[J]. ASTROPHYSICAL JOURNAL,2006,649(2):973-978.
APA Chen, WC,Li, XD,Qian SB,&Chen, WC .(2006).Orbital evolution of algol binaries with a circumbinary disk.ASTROPHYSICAL JOURNAL,649(2),973-978.
MLA Chen, WC,et al."Orbital evolution of algol binaries with a circumbinary disk".ASTROPHYSICAL JOURNAL 649.2(2006):973-978.
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