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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.
发表期刊ASTRONOMICAL JOURNAL
2009-11
卷号138期号:5页码:1465-1468
DOI10.1088/0004-6256/138/5/1465
产权排序第1完成单位
收录类别SCI
关键词Binaries: Close Binaries: Eclipsing Stars: Evolution Stars: Individual (Ae Phe)
摘要The 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.
项目资助者Yunnan Natural Science Foundation [2005A0059M, 2008CD157] ; National Key Fundamental Research Project [2007CB815406] ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2009-11-20
WOS记录号WOS:000270852100021
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LIGHT-CURVE ; MASS-RATIO ; PHE ; STARS
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5818
专题双星与变星研究组
通讯作者He, JJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.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
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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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