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A possible connection between the variation of light curve and the change of the orbital period in the contact binary CK Bootis
Qian SB(钱声帮)1,2,3; Liu QY(刘清耀)1,2,3; Qian, SB
Source PublicationASTROPHYSICS AND SPACE SCIENCE
2000
Volume271Issue:4Pages:331-339
DOI10.1023/A:1002489719676
Contribution Rank第1完成单位
Indexed BySCI
AbstractThe O-C curve of the contact binary CK Boo have been analyzed with Kalimeris et al. (1994) method. It is shown that the orbital period is changing in a quasi-sinusoidal form with a period of about similar to 14 yr superposed on a secular period increase. The correlation of the variations of the light level at MinI, MaxI and II in the light curve implies that the luminosity of secondary component is variable. Comparing the change of the quasi-periodic component in the orbital period with that of the secondary's luminosity, we find that the luminosity of the secondary component and the orbital period may vary with the same cycle length similar to 14 yr; the variation of the secondary's luminosity is in the same phase with that of the orbital period. This connection is different from those of the RS CVn-type close binaries (e.g. CG Cyg, V471 Tau, RT Lac). The mechanisms that may have produced this relation of the variations of the orbital period and the luminosity of the secondary are also discussed.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
Archive Date2000-12-31
WOS IDWOS:000088584900001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordTERM LUMINOSITY VARIATIONS ; CLOSE BINARIES ; TAURI
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5739
Collection双星与变星研究组
Corresponding AuthorQian, SB
Affiliation1.Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011, Kunming, P.R. China
2.National Astronomical Observatories, Chinese Academy of Sciences(NAOCAS), China
3.United Laboratory of Optical Astronomy, Chinese Academy of Sciences(ULOAC), China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qian SB,Liu QY,Qian, SB. A possible connection between the variation of light curve and the change of the orbital period in the contact binary CK Bootis[J]. ASTROPHYSICS AND SPACE SCIENCE,2000,271(4):331-339.
APA Qian SB,Liu QY,&Qian, SB.(2000).A possible connection between the variation of light curve and the change of the orbital period in the contact binary CK Bootis.ASTROPHYSICS AND SPACE SCIENCE,271(4),331-339.
MLA Qian SB,et al."A possible connection between the variation of light curve and the change of the orbital period in the contact binary CK Bootis".ASTROPHYSICS AND SPACE SCIENCE 271.4(2000):331-339.
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