The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn
Hashimoto, Amanda1; Zhang, Liyun2,3; Han, Xianming L.1,2; Lu, Hongpeng2,3; Wang, Daimei2,3; Zhang, LY (reprint author), Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China
发表期刊NEW ASTRONOMY
2016-05-01
卷号45页码:77-83
DOI10.1016/j.newast.2015.10.008
收录类别SCI
关键词Stars Binaries Eclipsing - Stars Period Variation - Stars Individual De Lyn
摘要We observed the contact eclipsing binary of DE Lyn using SARA 0.9 m telescope at Kitt Peak National Observatory on February 9, 11, and 27, 2015. In this study, we obtained the first full phase coverage BVRI CCD light curves, analyzed the orbital period variation, and extracted the orbital parameters. We calculated the linear and quadratic ephemeris, and thereby found that DE Lyn has a decreasing orbital period rate of -5.1 (+/- 0.4) x 10(-7) days/year. We assume this decreasing trend is the result of the more massive component (secondary) transferring mass to the less massive component (primary), and we obtained a mass transfer rate of dm/dt = 7.06 x 10(-7)M(circle dot)/year. By using the updated Wilson & Devinney program, we found the orbital parameters of DE Lyn, which, in turn, enabled us to calculate the low degree of contact factor as f = 9.02(+/- 0.01)%. In the future, its degree of contact will continue to increase and will evolve into an over-contact system. (C) 2015 Elsevier B.V. All rights reserved.
项目资助者Seitz Family ; Butler University ; Chinese Academy of Sciences (CAS) (11263001, 11163002, 11203070, 10978010, U1431114) ; Joint Fund of Astronomy of the National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of the GuiZhou Province office of Education(2014298)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1384-1076
URL查看原文
WOS记录号WOS:000369200700011
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]COLOR LIGHT CURVES ; STAR LIGHT ; VELOCITY ; SYSTEMS ; TAURI
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9324
专题中国科学院天体结构与演化重点实验室
通讯作者Zhang, LY (reprint author), Guizhou Univ, Coll Sci, Dept Phys, Guiyang 550025, Peoples R China
作者单位1.Department of Physics and Astronomy, Butler University, Indianapolis, IN46208, USA
2.College of Science / Department of Physics & NAOC-GZU-Sponsored Center for Astronomy Research, Guizhou University, Guiyang 550025, PR China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, PR China
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Hashimoto, Amanda,Zhang, Liyun,Han, Xianming L.,et al. The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn[J]. NEW ASTRONOMY,2016,45:77-83.
APA Hashimoto, Amanda,Zhang, Liyun,Han, Xianming L.,Lu, Hongpeng,Wang, Daimei,&Zhang, LY .(2016).The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn.NEW ASTRONOMY,45,77-83.
MLA Hashimoto, Amanda,et al."The first multi-color photometric study of the short-period contact eclipsing binary DE Lyn".NEW ASTRONOMY 45(2016):77-83.
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