First photometric study of W UMa binary star LU Lac
文献类型：期刊论文
| 作者 | Liao WP(廖文萍)1,2 ; Qian SB(钱声帮)1,2,3; Zhao EG(赵二刚)1,2,3; Jiang LQ(江林巧)1,2,3
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| 刊名 | NEW ASTRONOMY
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| 出版日期 | 2014-08 |
| 卷号 | 31页码:65-68 |
| 关键词 | Stars: binaries: close Stars: binaries: eclipsing Stars: individual (LU Lac) |
| ISSN号 | 1384-1076 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Liao, WP (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | LU Lac is a neglected W UMa binary star in photometric investigations. In this paper, we present BVRI CCD photometric light curves obtained on-one night in 2012. The first photometric solutions of this system are computed by using the Wilson-Devinney code. It is shown that LU Lac is a marginal contact W-type system with a degree of contact factor of f = 8.9%, a mass ratio of q = 2.085 and a high inclination of i = 82 degrees.20. From the first analyses of orbital period changes, we found the period variation of the system includes an oscillation (A(3) = 0.0125 days and T-3 = 51.92 years). The cyclic change may be attributed to the light-travel time effect through the presence of a third body. (c) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CYCLIC PERIOD CHANGES ; CLOSE BINARIES ; LIGHT CURVES ; RS CVN ; SYSTEMS ; CONTACT ; ALGOL ; CYGNI |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1384107614000414 |
| 语种 | 英语 |
| WOS记录号 | WOS:000335629700012 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5899]  |
| 专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China 2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, PO Box 110, 650011 Kunming, China 3.University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Liao WP,Qian SB,Zhao EG,et al. First photometric study of W UMa binary star LU Lac[J]. NEW ASTRONOMY,2014,31:65-68. |
| APA | Liao WP,Qian SB,Zhao EG,&Jiang LQ.(2014).First photometric study of W UMa binary star LU Lac.NEW ASTRONOMY,31,65-68. |
| MLA | Liao WP,et al."First photometric study of W UMa binary star LU Lac".NEW ASTRONOMY 31(2014):65-68. |
入库方式： OAI收割
来源：云南天文台
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