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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.
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2010
Volume62Issue:4Pages:987-991
DOI10.1093/pasj/62.4.987
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars: Individual: An Lyncis Stars: Variables: Delta Scuti Techniques: Photometric
AbstractWe 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.
Funding OrganizationChinese Natural Science Foundation [10973037, 10903026, 10778718, 10878012] ; National Key Fundamental Research Project [2007CB815406] ; Yunnan Natural Science Foundation [2008CD157, 2009CD122]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6264
URL查看原文
Archive Date2010-08-16
WOS IDWOS:000282485100014
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordLONG-TERM VARIABILITY ; SZ LYNCIS ; SCT STAR ; BD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5849
Collection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
Corresponding AuthorLi, LJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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