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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.
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2008
Volume60Issue:3Pages:565-569
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars : Binaries : Close Stars : Binaries : Eclipsing Stars : Evolution Stars : Individual (Ii Canis Majoris)
AbstractThe 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.
Funding OrganizationYunnan Natural Science Foundation(2005A0059M) ; Chinese Natural Science Foundation(10573032 ; 10573013 ; 10433030)
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6264
URL查看原文
Archive Date2008-12-31
WOS IDWOS:000258818000017
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordAGE OPEN CLUSTER ; CONTACT BINARY ; CE-LEONIS ; SYSTEMS ; DEEP ; PERIOD ; CANCRI ; STARS
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5815
Collection双星与变星研究组
Corresponding AuthorLiu, L (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, 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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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