Detection of a cool stellar companion to the delta Scuti variable star BP Peg
文献类型：期刊论文
| 作者 | Wang SM(王树民)1,2,3 ; Qian SB(钱声帮)1,2,3; He JJ(何家佳)1,2; Zhou X(周肖)1,2,3; Zhao EG(赵二刚)1,2,3
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| 刊名 | NEW ASTRONOMY
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| 出版日期 | 2014-10 |
| 卷号 | 32页码:6-9 |
| 关键词 | Stars : variable : delta Scuti Stars : individuals (BP Peg) Techniques : photometry |
| ISSN号 | 1384-1076 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Wang, SM (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | New CCD photometric monitoring on the high-amplitude delta Scuti variable BP Peg was carried out on November 4, 2013 by using the 1.0-m reflecting telescope of Yunnan Observatories in China as well as on December 29, 2013 by using the 85-cm telescope at Xinglong Station of National Astronomical Observatory in China. BP Peg is a new high-amplitude B Scuti variable with a period of 0.10954357 day. We have collected all the times of light maximum from the literature together with our data, and the pulsation period changes are analyzed through Observed-Calculated (O-C) method. With the available data, we discover that the pulsating period of BP Peg shows a cyclic oscillation with a period of 24.5 years and an amplitude of 0.0060 days. If the cyclic period changes are caused by light-time effect in a binary system, the reckoned mass of the hidden companion could be 0.20 M-circle dot and possibly, it is an M-type star. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-SA license. |
| 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] | LYNCIS |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S1384107614000426 |
| 语种 | 英语 |
| WOS记录号 | WOS:000336874400002 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5895]  |
| 专题 | 云南天文台_双星与变星研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China 2.Key Laboratory of the Structure and Evolution Celestial Bodies, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, PR China 3.University of the Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, 100049 Beijing, PR China |
| 推荐引用方式 GB/T 7714 | Wang SM,Qian SB,He JJ,et al. Detection of a cool stellar companion to the delta Scuti variable star BP Peg[J]. NEW ASTRONOMY,2014,32:6-9. |
| APA | Wang SM,Qian SB,He JJ,Zhou X,&Zhao EG.(2014).Detection of a cool stellar companion to the delta Scuti variable star BP Peg.NEW ASTRONOMY,32,6-9. |
| MLA | Wang SM,et al."Detection of a cool stellar companion to the delta Scuti variable star BP Peg".NEW ASTRONOMY 32(2014):6-9. |
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来源：云南天文台
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