Photometric study of neglected eclipsing binary GSC 3576-0170

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	Photometric study of neglected eclipsing binary GSC 3576-0170
	Zhang, LY1,2 ; Jing, JH 1,2; Tang, YK3 ; Zhang XL(张西亮)4
刊名	NEW ASTRONOMY
	2010-11
卷号	15 期号:8 页码:653-656
关键词	Stars: binaries: close Binaries: eclipsing Stars: individual
ISSN号	1384-1076
通讯作者	Zhang, LY (reprint author), Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China.
产权排序	第四完成单位
英文摘要	The new multi-color BVRI photometric light curves of the short-period eclipsing binary GSC 3576-0170 were obtained on two consecutive nights (October 5 and 6, 2009). With the 2003 version of Wilson-Devinney program, the precise photometric solutions are derived for the first time. The result shows that GSC 3576-0170 is a semi-detached binary system with a large temperature difference of approximately 1490 K. The light-curve distortions are further explained by a hot spot on the secondary component through mass transfer via a stream hitting the facing surface of the secondary component. By analyzing all available light minimum times, we also derived an update ephemeris and found for the first time a possible periodic oscillation with an amplitude of 0.0038 days and a period of 4.3 years. The periodic oscillation could be explained either by the light-time effect due to a presumed third component or by magnetic activity cycle of the system. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ORBITAL PERIOD MODULATION ; URSAE MAJORIS SYSTEMS ; CLOSE BINARIES ; STAR LIGHT ; CONTACT ; CURVES ; ANDROMEDAE
收录类别	SCI
原文出处	http://www.sciencedirect.com/science/article/pii/S1384107610000370
语种	英语
WOS记录号	WOS:000280513500001
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5388]
专题	云南天文台_丽江天文观测站（南方基地）
作者单位	1.College of Science, Department of Physics, Guizhou University, Guiyang 550025, PR China 2.NAOC-GZU-Sponsored Center for Astronomy Research, Guizhou University, Guiyang 550025, PR China 3.Department of Physics, Dezhou University, Dezhou 253023, PR China 4.National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, PR China
推荐引用方式 GB/T 7714	Zhang, LY,Jing, JH,Tang, YK,et al. Photometric study of neglected eclipsing binary GSC 3576-0170[J]. NEW ASTRONOMY,2010,15(8):653-656.
APA	Zhang, LY,Jing, JH,Tang, YK,&Zhang XL.(2010).Photometric study of neglected eclipsing binary GSC 3576-0170.NEW ASTRONOMY,15(8),653-656.
MLA	Zhang, LY,et al."Photometric study of neglected eclipsing binary GSC 3576-0170".NEW ASTRONOMY 15.8(2010):653-656.