Photometric study of the close binary system DD Monocerotis

	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)
刊名	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	1997-11
卷号	125 期号:3 页码:475-478
关键词	stars, DD Mon binaries, eclipsing stars, fundamental parameters
ISSN号	0365-0138
通讯作者	Qian, SB
产权排序	第一完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	CONTACT
收录类别	SCI
原文出处	http://aas.aanda.org/articles/aas/abs/1997/15/ds5919/ds5919.html
语种	英语
WOS记录号	WOS:A1997YE50000009
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5732]
专题	云南天文台_双星与变星研究组
推荐引用方式 GB/T 7714	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.(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.