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Photometric study of the close binary system DD Monocerotis
Qian SB(钱声帮); Liu QY(刘清耀); Yang YL(杨毓兰); Gu SH(顾盛宏); Huang ZK(黄占奎); Qian, SB
发表期刊ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
1997-11
卷号125期号:3页码:475-478
产权排序第1完成单位
收录类别SCI
关键词Stars Dd Mon Binaries Eclipsing Stars Fundamental Parameters
摘要New BV light curves of the short-period eclipsing binary system DD Mon have been obtained. Light-curve variability is seen in both B and V bands as compared with the light curves obtained in 1986 by Yamasaki et al. (1990). The light curves are analyzed by using Wilson-Devinney's synthetic light-curve program, and the present photometric solution reveals that DD Mon is a near-contact binary with the secondary component filling the Roche lobe. Combined with Yamasaki et al.'s (1990) spectroscopic results, absolute quantities of DD Mon are derived: mass of the primary M-1 = 1.05+/-0.08 M., mass of the secondary M-2 = 0.47+/-0.04 M., radius of the primary R-1 = 1.36+/-0.04 R., radius of the secondary R-2 = 1.03 +/- 0.03 R.. These results show that the components of DD Mon have evolved away from the ZAMS and through a mass-transfer process to the present semi-detached state. The variation in shape of the light curve may be caused by the evolution of the system and the activity of dark spots.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0365-0138
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WOS记录号WOS:A1997YE50000009
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CONTACT
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5732
专题双星与变星研究组
通讯作者Qian, SB
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Qian SB,Liu QY,Yang YL,et al. Photometric study of the close binary system DD Monocerotis[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1997,125(3):475-478.
APA 钱声帮,刘清耀,杨毓兰,顾盛宏,黄占奎,&Qian, SB.(1997).Photometric study of the close binary system DD Monocerotis.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,125(3),475-478.
MLA 钱声帮,et al."Photometric study of the close binary system DD Monocerotis".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 125.3(1997):475-478.
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