On the period variation of the WUMa-type contact binary V502 Ophiuchi
文献类型：期刊论文
| 作者 | Liu QY(刘清耀) ; Yang YL(杨毓兰)
|
| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 6期号:3页码:331-337 |
| 关键词 | stars : contact binary period change star : individual : V502 Oph |
| ISSN号 | 1009-9271 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Liu, QY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | The variation in the orbital period of the W UMa type contact binary V502 Oph is analyzed. The orbital period exhibits a wavelike variation with a periodicity of 23.0 years and an amplitude of Delta P = 1.24 x 10(-6) days superimposed on secular decrease of dP/dt = 1.68 x 10(-7) day per year. The long-term decrease may be accompanied by the contraction of the secondary at a rate of 83 m per year and a mass transfer rate from the primary to the secondary of 4.28 x 10(-8) M-. per year. The short-term oscillation may be explained by the presence of a third component. Orbital elements of the third body and its possible mass are presented. |
| 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] | URSAE MAJORIS SYSTEMS ; PHOTOELECTRIC OBSERVATIONS ; STARS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1009-9271/6/3/08/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000238416500008 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4208]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 |
| 推荐引用方式 GB/T 7714 | Liu QY,Yang YL. On the period variation of the WUMa-type contact binary V502 Ophiuchi[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(3):331-337. |
| APA | Liu QY,&Yang YL.(2006).On the period variation of the WUMa-type contact binary V502 Ophiuchi.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(3),331-337. |
| MLA | Liu QY,et al."On the period variation of the WUMa-type contact binary V502 Ophiuchi".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.3(2006):331-337. |
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来源：云南天文台
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