A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993
文献类型：期刊论文
| 作者 | Yang YG(杨远贵)1,2,3 ; Qian SB(钱声帮)1,2; Koppelman, MD4
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| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2005-04 |
| 卷号 | 5期号:2页码:137-143 |
| 关键词 | stars : binaries : close stars : binaries : eclipsing star : individual : GSC 0445-1993 |
| ISSN号 | 1009-9271 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Yang, YG (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Several new light minimum times for the eclipsing binary GSC 0445-1993 have been determined from the observations by Koppelman et al. and the orbital period of this system was revised. A photometric analysis was carried out using the 2003 version of the Wilson-Devinney code. The results reveal that GSC 0445-1993 is a W-type eclipsing binary with a mass ratio of q = 0.323(+/- 0.002) and an over-contact degree of f = 22.8%(+/- 4.2%). A small temperature difference between the components of AT = 135 K and an orbital inclination of i = 65.7 degrees(+/- 0.3 degrees) were obtained. The asymmetry of its light curve (i.e., the O'Connell effect) for this binary star is explained by the presence of a dark spot on the more massive component. |
| 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] | LIGHT-CURVE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1009-9271/5/2/003/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000228645800003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5780]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.National Astronomical Observatories /Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), Beijing 3.Graduate School of Chinese Academy of Sciences, Beijing 100039 4.Starhouse Observatory, 1523 Valders Ave N, Golden Valley, MN USA |
| 推荐引用方式 GB/T 7714 | Yang YG,Qian SB,Koppelman, MD. A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2005,5(2):137-143. |
| APA | Yang YG,Qian SB,&Koppelman, MD.(2005).A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,5(2),137-143. |
| MLA | Yang YG,et al."A photometric study of the W UMa-type eclipsing binary system GSC 0445-1993".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 5.2(2005):137-143. |
入库方式： OAI收割
来源：云南天文台
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