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CCD photometric study of the contact binary TX Cnc in the young open cluster NGC 2632
Liu L(刘亮)1,2,3; Qian SB(钱声帮)1,2; Boonrucksar, S4; Zhu LY(朱俐颖)1,2,3; He JJ(何家佳)1,2,3; Yuan JZ(袁金照)1,2,3; Liu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, PO Box 110, Kunming 650011, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2007
卷号59期号:3页码:607-614
产权排序第1完成单位
收录类别SCI
关键词Stars : Binaries : Close Stars : Binaries : Clipsing Open Cluster : Individual (Ngc 2632) Stars : Individual (Tx Cnc) Stars : Evolution
摘要TX Cnc is a member of the young open cluster NGC 2632. In the present paper, four CCD epochs of light minimum and a complete V light curve of TX Cnc are presented. A period investigation based on all available photoelectric or CCD data showed that it is superimposed on a long-term increase (dP/dt = +3.97 x 10(-8) d yr(-1)), and weak evidence suggests that it includes a small-amplitude period oscillation (A(3) = 0.(d)0028; T-3 = 26.6 yr). The light curves in the V band obtained in 2004 were analyzed with the 2003 version of the W-D code. It was shown that TX Cue is an overcontact binary system with a degree of contact factor f = 24.8% (+/- 0.9%). The absolute parameters of the system were calculated: M-1 = 1.319 +/- 0.007 M-circle dot M-2 = 0.600 +/- 0.01 M-circle dot; R-1 = 1.28 +/- 0.19 R-circle dot, R-2 = 0.91 +/- 0.13 R-circle dot. TX Cnc may be on the TRO-controlled stage of the evolutionary scheme proposed by Qian (2001a, b, 2003a), and may contain an invisible tertiary component (m(3) approximate to 0.097 (circle dot)). If this is true, the tertiary component has played an important role in the formation and evolution of TX Cnc by removing angular momentum from the central system (Pribulla & Rucinski 2006). In this way the contact binary configuration can be formed in the shortlife time of a young open cluster via AML.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6264
URL查看原文
归档日期2008-12-31
WOS记录号WOS:000247958900014
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ANGULAR-MOMENTUM LOSS ; THERMAL RELAXATION OSCILLATION ; PERIOD ECLIPSING BINARIES ; URSAE-MAJORIS SYSTEMS ; LATE-TYPE STARS ; OVERCONTACT BINARIES ; VARIABLE-STARS ; CLOSE BINARIES ; MASS-RATIO ; DISCOVERY
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5803
专题双星与变星研究组
通讯作者Liu, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, PO Box 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, P.R. China
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing, P.R. China
3.Graduate School of the Chinese Academy of Sciences, 100012 Beijing, P.R. China
4.Department of Physics, Faculty of Science, Chiang Mai University, 50200 Chiang Mai, Thailand
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Liu L,Qian SB,Boonrucksar, S,et al. CCD photometric study of the contact binary TX Cnc in the young open cluster NGC 2632[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2007,59(3):607-614.
APA Liu L.,Qian SB.,Boonrucksar, S.,Zhu LY.,He JJ.,...&Liu, L .(2007).CCD photometric study of the contact binary TX Cnc in the young open cluster NGC 2632.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,59(3),607-614.
MLA Liu L,et al."CCD photometric study of the contact binary TX Cnc in the young open cluster NGC 2632".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 59.3(2007):607-614.
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