A possible expanding component in the extreme mass ratio deep contact binary V710 Monocerotis

doi:10.1016/j.newast.2014.03.001

YNAO OpenIR > 双星与变星研究组

	A possible expanding component in the extreme mass ratio deep contact binary V710 Monocerotis
	Liu L(刘亮)1,2 ; Chen, WP 3,4; Na, WW 5,6; Qian SB(钱声帮)1,2 ; Zhang, L 5; Soonthornthum, B 7; Neelam, P 3; Zhu LY(朱俐颖)1,2 ; He JJ(何家佳)1,2 ; Han ZT(韩忠涛)1,2
发表期刊	NEW ASTRONOMY
	2014-08
卷号	31 页码:60-64
DOI	10.1016/j.newast.2014.03.001
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: Binaries: Evolution Stars: Individual: V710 Mon
摘要	We present CCD light curves of V710 Mon obtained in 2007 and 2013. By using the 2010 version of the W-D code, it is found that the star is a deep (59.5-62.7%) contact binary system, with an extreme mass ratio (0.143-0.183). The period of the system increases with a rate dP/dt = +1.95( +/- 0.06) x 10(-7) days/year. We propose that the system contains a post-main-sequence component which may be in an expanding phase. The time scale of the orbital increase nearly equals to the time for the post-main-sequence star to evolve into a subgiant. The age of the primary is estimated to be 5.34 Gyr. (c) 2014 Published by Elsevier B.V.
资助项目	Chinese Natural Science Foundation[11103074] ; Chinese Natural Science Foundation[11325315] ; Chinese Natural Science Foundation[11133007] ; West Light Foundation of the Chinese Academy of Sciences
项目资助者	Chinese Natural Science Foundation[11103074, 11325315, 11133007] ; West Light Foundation of the Chinese Academy of Sciences
语种	英语
学科领域	天文学 ; 恒星与银河系 ; 恒星形成与演化
文章类型	Article
出版者	ELSEVIER SCIENCE BV
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN	1384-1076
URL	查看原文
归档日期	2015-07-20
WOS记录号	WOS:000335629700011
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	OLD OPEN CLUSTERS ; VELOCITY CURVES ; CCD PHOTOMETRY ; STARS ; LIGHT ; CALIBRATION ; PARAMETERS ; EVOLUTION
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5898
专题	双星与变星研究组中国科学院天体结构与演化重点实验室
通讯作者	Liu L(刘亮)
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences (CAS), P.O. Box 110, 650011 Kunming, PR China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, PR China 3.Graduate Institute of Astronomy, National Central University, Taiwan 4.Department of Physics, National Central University, Taiwan 5.Department of Physics, Yunnan University, 650091 Kunming, Yunnan province, PR China 6.Department of Physics, Yuxi Normal University, 653100 Yuxi, Yunnan province, PR China 7.National Astronomical Research Institute of Thailand, 191 Siriphanich Bldg., Huay Kaew Rd., Chiang Mai 50200, Thailand
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Liu L,Chen, WP,Na, WW,et al. A possible expanding component in the extreme mass ratio deep contact binary V710 Monocerotis[J]. NEW ASTRONOMY,2014,31:60-64.
APA	Liu L.,Chen, WP.,Na, WW.,Qian SB.,Zhang, L.,...&Han ZT.(2014).A possible expanding component in the extreme mass ratio deep contact binary V710 Monocerotis.NEW ASTRONOMY,31,60-64.
MLA	Liu L,et al."A possible expanding component in the extreme mass ratio deep contact binary V710 Monocerotis".NEW ASTRONOMY 31(2014):60-64.

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