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The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478
Yang YG(杨远贵)1,2,4; Qian SB(钱声帮)1,2; Gonzalez-Rojas, DJ3; Yuan JZ(袁金照)1,2,4; Yang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICS AND SPACE SCIENCE
2005-12
Volume300Issue:4Pages:337-356
DOI10.1007/s10509-005-4161-4
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars Binaries Stars Photometric Solution Close Binaries Stars Eclipsing Individuals (Gsc 1848-1264 Gsc 0804-0118 Gsc 0619-0232 And Gsc 2936-0478)
AbstractPhotometric solutions of four new discovered W UMa-type binaries were carried out for the first time by using the 2003 version of the W-D program. It is discovered that all of the four systems are over-contact binaries. Two binaries, GSC 0804-0118 and GSC 2936-0478, are of A-subtype, while two other binaries, GSC 1848-1264 and GSC 0619-0232, are of W-subtype. From our solutions, the fundamental orbital and physical parameters were determined. For GSC 0619-0232 and GSC 2936-0478, the asymmetries of the light curves (i.e., the O'Connell effect) were explained by the presence of dark spots on the more massive components. Our photometric results reveal that GSC 0619-0232 is an important and interesting system. It is a W-type over-contact binary with a low mass ratio of q = 0.100 and a high over-contact degree of f = 93.4%, which suggests that GSC 0619-0232 may be evolved into a single rapid-rotating star.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
Archive Date2005-12-05
WOS IDWOS:000233735200004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordOVERCONTACT BINARY ; URSAE MAJORIS ; LIGHT CURVES ; SYSTEM
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5773
Collection双星与变星研究组
Corresponding AuthorYang, YG (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, 650011, Kunming, P.R. China
2.United Laboratory of Optical Astronomy, CAS (ULOAC), Beijing, P.R. China
3.Grupo Astronmico Silos, C/. Balsa 1, 50139, Torrecilla de Valmadrid, Zaragoza, Spain
4.Graduate School of Chinese Academy of Sciences, Beijing, P.R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yang YG,Qian SB,Gonzalez-Rojas, DJ,et al. The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478[J]. ASTROPHYSICS AND SPACE SCIENCE,2005,300(4):337-356.
APA Yang YG,Qian SB,Gonzalez-Rojas, DJ,Yuan JZ,&Yang, YG .(2005).The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478.ASTROPHYSICS AND SPACE SCIENCE,300(4),337-356.
MLA Yang YG,et al."The first photometric analyses of four new discovered EW-type eclipsing binaries: GSC 1848-1264, GSC 0804-0118, GSC 0619-0232 and GSC 2936-0478".ASTROPHYSICS AND SPACE SCIENCE 300.4(2005):337-356.
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