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A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993
Yang YG(杨远贵)1,2,3; Qian SB(钱声帮)1,2; Koppelman, MD4; Yang, YG (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2005-04
Volume5Issue:2Pages:137-143
DOI10.1088/1009-9271/5/2/003
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars : Binaries : Close Stars : Binaries : Eclipsing Star : Individual : Gsc 0445-1993
AbstractSeveral new light minimum times for the eclipsing binary GSC 0445-1993 have been determined from the observations by Koppelman et al. and the orbital period of this system was revised. A photometric analysis was carried out using the 2003 version of the Wilson-Devinney code. The results reveal that GSC 0445-1993 is a W-type eclipsing binary with a mass ratio of q = 0.323(+/- 0.002) and an over-contact degree of f = 22.8%(+/- 4.2%). A small temperature difference between the components of AT = 135 K and an orbital inclination of i = 65.7 degrees(+/- 0.3 degrees) were obtained. The asymmetry of its light curve (i.e., the O'Connell effect) for this binary star is explained by the presence of a dark spot on the more massive component.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2005-05-12
WOS IDWOS:000228645800003
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordLIGHT-CURVE
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5780
Collection双星与变星研究组
Corresponding AuthorYang, YG (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories /Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), Beijing
3.Graduate School of Chinese Academy of Sciences, Beijing 100039
4.Starhouse Observatory, 1523 Valders Ave N, Golden Valley, MN USA
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang YG,Qian SB,Koppelman, MD,et al. A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2005,5(2):137-143.
APA Yang YG,Qian SB,Koppelman, MD,&Yang, YG .(2005).A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,5(2),137-143.
MLA Yang YG,et al."A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 5.2(2005):137-143.
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