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A photometric study of the near contact binary UU Lyncis
Zhu LY(朱俐颖)1,2,3; Qian SB(钱声帮)1,2; Boonrucksar, S4; He JJ(何家佳)1,2,3; Yuan JZ(袁金照)1,2,3; Zhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2007
Volume7Issue:2Pages:251-257
DOI10.1088/1009-9271/7/2/09
Contribution Rank第1完成单位
Indexed BySCI
KeywordTechniques : Photometric Binaries : Eclipsing Stars : Individual : Uu Lyncis
AbstractThe near-contact binary UU Lyn with an F3V-type primary was observed in 2005 and 2006. With the latest version of the Wilson-Devinney code, the photometric elements were computed. The results reveal that UU Lyn is a marginal contact system with a large temperature difference of about 1900 K between the primary and secondary components. All available eclipse times, including new ones, were used in the analysis. The results show that the orbital period of this system undergoes a continuous decrease at a rate of dP/dt = -1.84 x 10(-8) d yr(-1). With the period decrease, UU Lyn may evolve from the present short-period marginal contact system into a contact system with true thermal contact. This target might just be undergoing the cycles predicted by the theory of thermal relaxation oscillations (TRO). It is an interesting example resembling BL And, GW Tau, ZZ Aur, KQ Gem, CN And and AD Cnc, that lie in the key evolutionary stage.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2007-04-10
WOS IDWOS:000246129300009
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordURSAE MAJORIS SYSTEMS ; LIGHT-CURVE ANALYSIS ; STAR LIGHT ; PERIOD VARIATION ; HL-AURIGAE ; ANDROMEDAE
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/5802
Collection双星与变星研究组
Corresponding AuthorZhu, LY (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.United Laboratory of Optical Astronomy, Chinese Academy of Sciences (ULOAC), 100012 Beijing
3.Graduate School of Chinese Academy of Sciences, Beijing 100049
4.Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhu LY,Qian SB,Boonrucksar, S,et al. A photometric study of the near contact binary UU Lyncis[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(2):251-257.
APA Zhu LY,Qian SB,Boonrucksar, S,He JJ,Yuan JZ,&Zhu, LY .(2007).A photometric study of the near contact binary UU Lyncis.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(2),251-257.
MLA Zhu LY,et al."A photometric study of the near contact binary UU Lyncis".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.2(2007):251-257.
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