RZ Tauri: An unstable W Ursae Majoris binary with a magnetically active component
文献类型：期刊论文
| 作者 | Yang YL(杨毓兰)1,2 ; Liu QY(刘清耀)1,2
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2003-10 |
| 卷号 | 126期号:4页码:1960-1966 |
| 关键词 | stars : activity stars : binaries : close stars : individual (RZ Tauri) stars : spots |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Yang, YL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | New BV light curves and photometric solutions for the W Ursae Majoris binary RZ Tauri (spectral type F0) are presented. The light curves appear to exhibit a typical O'Connell effect, with primary maximum being 0.023 mag (V) and 0.030 mag (B) brighter than secondary maximum. From the present times of minimum light and those collected from the literature, the changes in the orbital period of the system are analyzed. The results suggest that the orbital period of RZ Tau continuously increases at a rate of dp/p = 1.10 x 10(-10) and that a short-term wavelike variation with an amplitude of DeltaP = 3.8 x 10(-6) days and a period of P-mod = 60 yr are superposed on the secular increase. The orbital period increase may be explained by mass transfer from the less massive to the more massive component at a rate of Deltam/Deltat = 8.81 x 10(-8) M. |
| 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] | ORBITAL PERIOD MODULATION ; CONTACT BINARY ; CLOSE BINARIES ; LIGHT CURVES ; STARS ; UMA ; ELEMENTS ; SYSTEMS ; CANCRI |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1538-3881/126/4/1960/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000185676200025 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4153]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | 1.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Yang YL,Liu QY. RZ Tauri: An unstable W Ursae Majoris binary with a magnetically active component[J]. ASTRONOMICAL JOURNAL,2003,126(4):1960-1966. |
| APA | Yang YL,&Liu QY.(2003).RZ Tauri: An unstable W Ursae Majoris binary with a magnetically active component.ASTRONOMICAL JOURNAL,126(4),1960-1966. |
| MLA | Yang YL,et al."RZ Tauri: An unstable W Ursae Majoris binary with a magnetically active component".ASTRONOMICAL JOURNAL 126.4(2003):1960-1966. |
入库方式： OAI收割
来源：云南天文台
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