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Revision of the photometric parameters of BS Cassiopeiae
He JJ(何家佳)1,2,3; Qian SB(钱声帮)1,2,3; Zejda, M4; Mikulasek, Z4,5; He, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China.
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2010-06
Volume10Issue:6Pages:569-576
DOI10.1088/1674-4527/10/6/006
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual: Bs Cas
AbstractSeven charge-coupled device (CCD) photometric times of light minimum of the overcontact binary BS Cas which were obtained from 2007 August to November and one CCD light curve in the R band which was observed on 2007 September 24 and October 15, are presented. It is found that the light curve of BS Cas has characteristics like a typical EW-type light variation. The light curve obtained by us is symmetric and shows total eclipses, which is very useful for determining photometric parameters with high precision. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney code. It shows that BS Cas is a W-subtype overcontact binary (f = 27.5% +/- 0.4%) with a mass ratio of q = 2.7188 +/- 0.0040. The temperature difference between the two components is 190 K. Analysis of the O-C curve suggests that the period of AE Phe shows a long-term continuous decrease at a rate of dP/dt = -2.45 x 10(-7) d yr(-1). The long-time period decrease can be explained by mass transfer from the primary to the secondary.
Funding OrganizationNational Natural Science Foundation of China [10973037, 10903026, 10778718] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157, 2009CD122]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1674-4527
URL查看原文
Archive Date2010-07-09
WOS IDWOS:000279087400006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordECLIPSING BINARY ; STARS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5840
Collection双星与变星研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorHe, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
4.Institute of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
5.Observatory and Planetarium of J. Palisa, VŠB- Technical University, Ostrava, Czech Republic
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
He JJ,Qian SB,Zejda, M,et al. Revision of the photometric parameters of BS Cassiopeiae[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(6):569-576.
APA He JJ,Qian SB,Zejda, M,Mikulasek, Z,&He, JJ .(2010).Revision of the photometric parameters of BS Cassiopeiae.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(6),569-576.
MLA He JJ,et al."Revision of the photometric parameters of BS Cassiopeiae".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.6(2010):569-576.
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