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Period study of the delta Scuti variable DE Lac
Wang SM(王树民)1,2,3; Qian SB(钱声帮)1,2,3; Liao WP(廖文萍)1,2; Zhang J(张嘉)1,2; Zhou X(周肖)1,2,3; Zhao EG(赵二刚)1,2; Wang, SM (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA
2014-03
卷号42期号:1页码:19-25
产权排序第1完成单位
收录类别SCI
关键词Techniques: Photometric Stars: Variable: Delta Scuti Stars: Individual: De Lacertae
摘要DE Lac is a high-amplitude delta Scuti variable with a period of 0.253694 days. New CCD photometric monitoring of DE Lac was carried out on 2013 December 18 and 2014 January 5, by using the 1.0-m reflecting telescope at Yunnan Observatories. Photometric observations of DE Lac were also obtained by using the 85-cm telescope at Xinglong Station of National Astronomical Observatory. By using a few new determined times of maximum light together with those collected from the literature, the period changes in Observed-Calculated (O - C) diagram are analyzed. We discover that the pulsating period of DE Lac is increasing continuously at a rate of (P) over dot = + 3.7 x 10(-8) days/year. It is compatible with the prediction from the stellar evolution model calculations. Meanwhile, we collect other delta Scuti stars that have exhibited period changes.
项目资助者Chinese Natural Science Foundation [11133007, 11325315, 10933002]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0304-9523
URL查看原文
归档日期2015-03-18
WOS记录号WOS:000342398800002
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]STARS ; EVOLUTION
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5904
专题双星与变星研究组
中国科学院天体结构与演化重点实验室
通讯作者Wang, SM (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, P.O.Box 110, 650011 Kunming, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences
3.University of Chinese Academy of Sciences, Yuquan Road 19#, Shijingshan Block, 100049 Beijing, P.R. China
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GB/T 7714
Wang SM,Qian SB,Liao WP,et al. Period study of the delta Scuti variable DE Lac[J]. BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA,2014,42(1):19-25.
APA Wang SM.,Qian SB.,Liao WP.,Zhang J.,Zhou X.,...&Wang, SM .(2014).Period study of the delta Scuti variable DE Lac.BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA,42(1),19-25.
MLA Wang SM,et al."Period study of the delta Scuti variable DE Lac".BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA 42.1(2014):19-25.
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