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A period study of the RS CVn-type binary ER Vulpeculae
Qian SB(钱声帮); Liu QY(刘清耀); Yang YL(杨毓兰); Qian, SB
Source PublicationASTROPHYSICS AND SPACE SCIENCE
1998
Volume257Issue:1Pages:1-10
DOI10.1023/A:1000448104322
Contribution Rank第1完成单位
Indexed BySCI
AbstractMany available published times of light minima of the late-type binary system ER Vul have been compiled and analyzed using a new method proposed by Kalimeris et al. (1994). It was shown that the orbital period of the system oscillation with a period of about 30.6 years and an amplitude of 3.2 x 10(-6) days while it undergoes a constant period decrease of about dP/P = 7.84 x 10(-8) day/year. The prospective physical mechanisms that could have modulated the orbital period behaviour (periodic or non-periodic), have been studied. We found that a combination of a magnetic activity cycle mechanism and an enhanced stellar wind could explain satisfactorily the period change.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
WOS IDWOS:000078312100001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCA-II-H ; ORBITAL PERIOD ; CANUM-VENATICORUM ; SYSTEMS ; ALPHA ; PHOTOMETRY ; EMISSIONS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5733
Collection双星与变星研究组
Corresponding AuthorQian, SB
AffiliationYunnan Observatory, Academia Sinica, Kunming, China
Recommended Citation
GB/T 7714
Qian SB,Liu QY,Yang YL,et al. A period study of the RS CVn-type binary ER Vulpeculae[J]. ASTROPHYSICS AND SPACE SCIENCE,1998,257(1):1-10.
APA Qian SB,Liu QY,Yang YL,&Qian, SB.(1998).A period study of the RS CVn-type binary ER Vulpeculae.ASTROPHYSICS AND SPACE SCIENCE,257(1),1-10.
MLA Qian SB,et al."A period study of the RS CVn-type binary ER Vulpeculae".ASTROPHYSICS AND SPACE SCIENCE 257.1(1998):1-10.
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