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A Period Investigation of the delta Scuti Star AN Lyncis
Li LJ(李临甲)1,2,3; Qian SB(钱声帮)1,2,3; Xiang, FY4; Li, LJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2010
卷号62期号:4页码:987-991
DOI10.1093/pasj/62.4.987
产权排序第1完成单位
收录类别SCI
关键词Stars: Individual: An Lyncis Stars: Variables: Delta Scuti Techniques: Photometric
摘要We present 9 new times of light maximum of the delta Scuti star AN Lyncis based on photometric observations from the years 2008-2010. Together with 194 times of the light maximum from the literature, a detailed study of the O - C diagram with data spanning over three decades has led to a new ephemeris formula. A cyclic change in the O - C diagram is also suggested by the O - C method, where the cyclic period is about 17.7 yr. With the available data, we have found that the Fourier amplitude of AN Lyncis is changing in sync with a change of the pulsation period. Simple arguments are given for a possible mechanism affecting the cyclic change.
项目资助者Chinese Natural Science Foundation [10973037, 10903026, 10778718, 10878012] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157, 2009CD122]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6264
URL查看原文
归档日期2010-08-16
WOS记录号WOS:000282485100014
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]LONG-TERM VARIABILITY ; SZ LYNCIS ; SCT STAR ; BD
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/5849
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Li, LJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, P. R. China
3.Graduate School of the Chinese Academy of Sciences, 100049, Beijing, P.R. China/Yuquan Road 19#, Sijing Shan Block, 100049, Beijing City, P. R. China
4.Physics Department, Xiangtan University, 411105 Xiangtan, Funan Province, P. R. China
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Li LJ,Qian SB,Xiang, FY,et al. A Period Investigation of the delta Scuti Star AN Lyncis[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2010,62(4):987-991.
APA Li LJ,Qian SB,Xiang, FY,&Li, LJ .(2010).A Period Investigation of the delta Scuti Star AN Lyncis.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,62(4),987-991.
MLA Li LJ,et al."A Period Investigation of the delta Scuti Star AN Lyncis".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 62.4(2010):987-991.
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