| Is the Algol-type eclipsing binary RX Geminorum a true triple system? | |
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 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
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| 2002-07 | |
| 卷号 | 114期号:797页码:766-769 |
| DOI | 10.1086/341703 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 摘要 | An analysis of the times of minimum light for the long-period Algol-type eclipsing binary RX Gem is presented based on a new linear ephemeris. The O-C curve shows a cyclic oscillation with a period of 55.7 yr and a semiamplitude of 0.0645 day. Assuming the change to be due to the presence of a "third body" revolving around the RX Gem system, the parameters of the third body's orbit are derived. Since the third-body assumption is in good agreement with the spectroscopic data from several authors and with published photometric solutions (Gaposchkin, Hall, Walter; Giuricin et al.), RX Gem is likely to be a triple system. In this case, the third body is an A-type star in a circular orbit, which is nearly coplanar to the orbit of the eclipsing pair. However, the recent light-curve analysis by Olson & Etzel does not show any third light, so the third star (M-3 > 2.41 M-.) may be an unseen neutron star or black hole. Additional eclipse timings over the next decade will be important to verify the presence of the third body. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-6280 |
| URL | 查看原文 |
| 归档日期 | 2002-08-28 |
| WOS记录号 | WOS:000176440900008 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ALTERNATE PERIOD CHANGES |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5757 |
| 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, People’s Republic of China 2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC) 3.The Second Middle School of Nayong County, Nayong 553300, Guizhou Province, People’s Republic of China 4.Department of Physics, Guizhou Normal University, Guiyang 550001, Guizhou Province, People’s Republic of China 5.Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, 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. Is the Algol-type eclipsing binary RX Geminorum a true triple system?[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2002,114(797):766-769. |
| APA | Qian SB,Liu, DL,Tan, WL,Soonthornthum, B,&Qian, SB .(2002).Is the Algol-type eclipsing binary RX Geminorum a true triple system?.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,114(797),766-769. |
| MLA | Qian SB,et al."Is the Algol-type eclipsing binary RX Geminorum a true triple system?".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 114.797(2002):766-769. |
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| Is the Algol-type ec（120KB） | 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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