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CCD photometric study of the WUMa-type binary II Canis Majoris in the field of Berkeley 33
Liu L(刘亮)1,2,3; Qian SB(钱声帮)1,2; Zhu LY(朱俐颖)1,2,3; He JJ(何家佳)1,2,3; Yuan JZ(袁金照)1,2,3; Dai ZB(戴智斌)1,2,3; Liao WP(廖文萍)1,2,3; Zhang J(张嘉)1,2,3; Liu, L (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2008
卷号60期号:3页码:565-569
产权排序第1完成单位
收录类别SCI
关键词Stars : Binaries : Close Stars : Binaries : Eclipsing Stars : Evolution Stars : Individual (Ii Canis Majoris)
摘要The CCD photometric data of an EW-type binary, II CMa, which is a contact star in the field of the middle-aged open cluster Berkeley 33, are presented. A complete R light curve was obtained. In the present work, using the five CCD epochs of light minimum [three of them were calculated from Mazur et al. (1993 MNRAS, 265, 405)'s data and two from our new data], the orbital period P was revised to 0.22919704 days. The complete R light curve was analyzed by using the 2003 version of W-D (Wilson-Devinney) program. It is found that this is a contact system with a mass ratio of q = 0.9 and a contact factor of f = 4.1%. The high mass ratio (q = 0.9) and the low contact factor (f = 4.1%) indicate that the system just evolved into the marginal contact stage.
项目资助者Yunnan Natural Science Foundation(2005A0059M) ; Chinese Natural Science Foundation(10573032 ; 10573013 ; 10433030)
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:000258818000017
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]AGE OPEN CLUSTER ; CONTACT BINARY ; CE-LEONIS ; SYSTEMS ; DEEP ; PERIOD ; CANCRI ; STARS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5815
专题双星与变星研究组
通讯作者Liu, L (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, 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
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Liu L,Qian SB,Zhu LY,et al. CCD photometric study of the WUMa-type binary II Canis Majoris in the field of Berkeley 33[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2008,60(3):565-569.
APA Liu L.,Qian SB.,Zhu LY.,He JJ.,Yuan JZ.,...&Liu, L .(2008).CCD photometric study of the WUMa-type binary II Canis Majoris in the field of Berkeley 33.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,60(3),565-569.
MLA Liu L,et al."CCD photometric study of the WUMa-type binary II Canis Majoris in the field of Berkeley 33".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 60.3(2008):565-569.
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