| YY Geminorum: A very late type close binary with possible magnetic stellar wind | |
Qian SB(钱声帮)1,2 ; Liu, DL3; Tan, WL4; Soonthornthum, B5; Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
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| 发表期刊 | ASTRONOMICAL JOURNAL
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| 2002-08 | |
| 卷号 | 124期号:2页码:1060-1063 |
| DOI | 10.1086/339832 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Binaries : Close Stars : Individual (Yy Geminorum) Stars : Mass Loss |
| 摘要 | The O-C curve of the very late type close binary (dMle+dMle)YY Geminorum is formed and analyzed based on all available times of minimum light. It is found that the orbital period shows a secular decrease with rate dP/dt = -1.08x10(-8) days yr(-1). There is weak evidence indicating that a small-amplitude period oscillation is superposed on the period decrease. YY Gem is a well-detached eclipsing binary containing two very active components. The secular period decrease may suggest that the system is undergoing secular mass and angular momentum loss via a magnetic stellar wind. If the small-amplitude oscillation is real, it can be explained either by magnetic activity cycles or by the presence of a giant planet or brown dwarf. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-6256 |
| URL | 查看原文 |
| 归档日期 | 2002-09-18 |
| WOS记录号 | WOS:000176888900033 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ORBITAL PERIOD MODULATION ; STARS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5756 |
| 专题 | 双星与变星研究组 |
| 通讯作者 | Qian, SB (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China. |
| 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 3.Nayong County Second Middle School, 553300 Nayong, Guizhou, China 4.Department of Physics, Guizhou Normal University, 550001 Guiyang, Guizhou, China 5.Department of Physics, Chiang Mai University, 50200 Chiang Mai, Thailand |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Qian SB,Liu, DL,Tan, WL,et al. YY Geminorum: A very late type close binary with possible magnetic stellar wind[J]. ASTRONOMICAL JOURNAL,2002,124(2):1060-1063. |
| APA | Qian SB,Liu, DL,Tan, WL,Soonthornthum, B,&Qian, SB .(2002).YY Geminorum: A very late type close binary with possible magnetic stellar wind.ASTRONOMICAL JOURNAL,124(2),1060-1063. |
| MLA | Qian SB,et al."YY Geminorum: A very late type close binary with possible magnetic stellar wind".ASTRONOMICAL JOURNAL 124.2(2002):1060-1063. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| YY Geminorum_ A Very（114KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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