CCD Photometry of the W UMa type star QX Andromeda
文献类型：期刊论文
| 作者 | Ren, AB1; Zhang, XB2 ; Luo CQ(罗常青)3; Luo YP(罗杨平)3; Deng, LC2; Luo, ZQ1
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| 刊名 | NEW ASTRONOMY
 |
| 出版日期 | 2011-04 |
| 卷号 | 16期号:3页码:194-198 |
| 关键词 | Binaries: close Binaries: eclipsing Open cluster and associations: individual (NGC 752) Stars: evolution Stars individual (QX Andromeda) |
| ISSN号 | 1384-1076 |
| 产权排序 | 第三完成单位 |
| 通讯作者 | Ren, AB (reprint author), China W Normal Univ, Inst Theoret Phys, Nanchong 637002, Peoples R China. |
| 英文摘要 | We present new B- and V-band photometry of the W UMa-type binary system QX And, which is a member of the open cluster NGC 752. Revised orbital period and new ephemerides were given for the binary system based on the data of times of light minima. The result of a period analysis reveals that the system is undergoing a continuous orbital period increase during the past decades. The rate of period increasing turns out to be about 2.7 x 10(-7) d yr(-1). With the Wilson-Devinney code, a photometric solution is computed. It yields a contact configuration for the system with a filling factor of 0.361. Combining the results from the photometric solution along with that from the radial-velocity observations, we have determined the absolute parameters for the two components of the system. The masses, radii and luminosity of the primary and secondary stars are calculated as 1.43 +/- 0.04 M(circle dot) 1.45 +/- 0.09 R(circle dot), 2.87 +/- 0.40 L(circle dot) and 0.44 +/- 0.02 M(circle dot), 0.87 +/- 0.05 R(circle dot), 0.99 +/- 0.13 L(circle dot), respectively. The evolutionary status and physical nature of the contact binary system were discussed compared with the theoretical models. (C) 2010 Elsevier RV. 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] | OPEN CLUSTER NGC-752 ; RADIAL-VELOCITY ; PROPER MOTIONS ; LIGHT CURVES ; AGE ; PROGRAM |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1384107610000990 |
| 语种 | 英语 |
| WOS记录号 | WOS:000285660400010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5209]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 作者单位 | 1.Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China 2.Key Laboratory for Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Ren, AB,Zhang, XB,Luo CQ,et al. CCD Photometry of the W UMa type star QX Andromeda[J]. NEW ASTRONOMY,2011,16(3):194-198. |
| APA | Ren, AB,Zhang, XB,Luo CQ,Luo YP,Deng, LC,&Luo, ZQ.(2011).CCD Photometry of the W UMa type star QX Andromeda.NEW ASTRONOMY,16(3),194-198. |
| MLA | Ren, AB,et al."CCD Photometry of the W UMa type star QX Andromeda".NEW ASTRONOMY 16.3(2011):194-198. |
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来源：云南天文台
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