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Period study of the delta Scuti variable DE Lac

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; 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
刊名BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA
出版日期2014-03
卷号42期号:1页码:19-25
关键词techniques: photometric stars: variable: delta Scuti stars: individual: DE Lacertae
ISSN号0304-9523
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.
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]STARS ; EVOLUTION
收录类别SCI
原文出处http://articles.adsabs.harvard.edu/full/2014BASI...42...19W
语种英语
WOS记录号WOS:000342398800002
源URL[http://ir.ynao.ac.cn/handle/114a53/5904]  
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, 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
推荐引用方式
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,&Zhao EG.(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.

入库方式： OAI收割

来源：云南天文台

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