中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
刊名NEW ASTRONOMY
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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