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A CHARGE-COUPLED DEVICE PHOTOMETRIC STUDY OF SOUTH HEMISPHERIC CONTACT BINARY AE PHOENICIS
He JJ(何家佳)1,2,3; Qian SB(钱声帮)1,2,3; Lajus, EF4,5; Farina, C4,5; He, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationASTRONOMICAL JOURNAL
2009-11
Volume138Issue:5Pages:1465-1468
DOI10.1088/0004-6256/138/5/1465
Contribution Rank第1完成单位
Indexed BySCI
KeywordBinaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (Ae Phe)
AbstractThe complete charge-coupled device light curves in B, V, R, and I bands of the short-period binary system, AE Phe, are presented. It is found that the light curves of AE Phe belong to typical EW-type light variation. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney code. It showed that AE Phe is a W-subtype shallow-contact system (f = 14.6%(+/- 0.5%)) with a mass ratio of q = 2.5491(+/- 0.0092). The temperature difference between the two components is 227 K. Analysis of the O-C curve suggests that the period of AE Phe shows a long-term continuous increase at a rate of dP/dt = + 6.17(+/- 0.44) x 10(-8) days year(-1). The long-term period increase, the marginal-contact configuration, and the astrophysical parameters of the binary system, all suggest that it is a shallow-contact binary undergoing a thermal relaxation oscillation evolving into a detached binary.
Funding OrganizationYunnan Natural Science Foundation [2005A0059M, 2008CD157] ; National Key Fundamental Research Project [2007CB815406] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6256
URL查看原文
Archive Date2009-11-20
WOS IDWOS:000270852100021
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordLIGHT-CURVE ; MASS-RATIO ; PHE ; 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/114a53/5818
Collection双星与变星研究组
Corresponding AuthorHe, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, People's Republic of China
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, People's Republic of China
3.Graduate School of the Chinese Academy of Sciences, Beijing 100039, People's Republic of China
4.Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, 1900 La Plata, Buenos Aires, Argentina
5.Instituto de Astrofśica de La Plata (CCT La Plata-CONICET, UNLP), Argentina
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
He JJ,Qian SB,Lajus, EF,et al. A CHARGE-COUPLED DEVICE PHOTOMETRIC STUDY OF SOUTH HEMISPHERIC CONTACT BINARY AE PHOENICIS[J]. ASTRONOMICAL JOURNAL,2009,138(5):1465-1468.
APA He JJ,Qian SB,Lajus, EF,Farina, C,&He, JJ .(2009).A CHARGE-COUPLED DEVICE PHOTOMETRIC STUDY OF SOUTH HEMISPHERIC CONTACT BINARY AE PHOENICIS.ASTRONOMICAL JOURNAL,138(5),1465-1468.
MLA He JJ,et al."A CHARGE-COUPLED DEVICE PHOTOMETRIC STUDY OF SOUTH HEMISPHERIC CONTACT BINARY AE PHOENICIS".ASTRONOMICAL JOURNAL 138.5(2009):1465-1468.
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