Photometric study of the contact binary 07g-3-00820 at the period cut off

doi:10.1016/j.newast.2017.04.008

	Photometric study of the contact binary 07g-3-00820 at the period cut off
	Gao, H. -Y.1; Li, K.1,2 ; Li, Q. -C.1; Ma, S.1
发表期刊	NEW ASTRONOMY
	2017-10-01
卷号	56 页码:10-13
DOI	10.1016/j.newast.2017.04.008
收录类别	SCI
关键词	Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (07g-3-00820)
摘要	07g-3-00820 is a K-type contact binary system with a period of 0.2269551 days. This extremely short period makes this system a rare target whose period is close to the empirical limit (0.22 days). R-c and I-c light curves of this binary were obtained using the 1.0 m reflecting telescope at Weihai Observatory of Shandong University. A high mass ratio of q = 1.300 +/- 0.006 and a low contact degree off = 5% +/- 1.5% were determined from a photometric study using the Wilson-Devinney method. The following parameters of this W-subtype shallow contact system were derived: M-1 = 0.621 +/- 0.072M(circle dot), M-2 = 0.807 +/- 0.093M(circle dot), R-1 = 0.634 +/- 0.036R(circle dot), R-2 = 0.710 +/- 0.037R(circle dot), L-1 = 0.270 +/- 0.037L(circle dot), and L-2 = 0.339 +/- 0.048L(circle dot). By analyzing the location of the two components on the mass-luminosity diagram, we provide a preliminary discussion on the properties and the state of evolution of this system. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China (NSFC)[U1431105] ; Chinese Academy of Sciences (CAS)[U1431105] ; Natural Science Foundation of Shandong Province[ZR2014AQ019] ; Young Scholars Program of Shandong University, Weihai[2016WHWLJH07] ; Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201303]
项目资助者	National Natural Science Foundation of China (NSFC)[U1431105] ; Chinese Academy of Sciences (CAS)[U1431105] ; Natural Science Foundation of Shandong Province[ZR2014AQ019] ; Young Scholars Program of Shandong University, Weihai[2016WHWLJH07] ; Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201303]
语种	英语
学科领域	天文学 ; 恒星与银河系
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
WOS记录号	WOS:000404504300003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	URSAE MAJORIS SYSTEMS ; STAR LIGHT CURVES ; VELOCITY CURVES ; LIMIT ; EVOLUTION ; MASS
引用统计	被引频次：6[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/114a53/10139
专题	中国科学院天体结构与演化重点实验室
通讯作者	Li, K.
作者单位	1.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, 264209, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, China
推荐引用方式 GB/T 7714	Gao, H. -Y.,Li, K.,Li, Q. -C.,et al. Photometric study of the contact binary 07g-3-00820 at the period cut off[J]. NEW ASTRONOMY,2017,56:10-13.
APA	Gao, H. -Y.,Li, K.,Li, Q. -C.,&Ma, S..(2017).Photometric study of the contact binary 07g-3-00820 at the period cut off.NEW ASTRONOMY,56,10-13.
MLA	Gao, H. -Y.,et al."Photometric study of the contact binary 07g-3-00820 at the period cut off".NEW ASTRONOMY 56(2017):10-13.

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