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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
发表期刊ASTROPHYSICS AND SPACE SCIENCE
2000
卷号271期号:4页码:331-339
DOI10.1023/A:1002489719676
产权排序第1完成单位
收录类别SCI
摘要The 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-640X
URL查看原文
归档日期2000-12-31
WOS记录号WOS:000088584900001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]TERM LUMINOSITY VARIATIONS ; CLOSE BINARIES ; TAURI
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5739
专题双星与变星研究组
通讯作者Qian, SB
作者单位1.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
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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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