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A photometric analysis of the neglected EW-type binary V336 TrA
Kriwattanawong, W.1; Sarotsakulchai, T.2,3,4; Maungkorn, S.1; Reichart, D. E.5; Haislip, J. B.5; Kouprianov, V. V.5; LaCluyze, A. P.5; Moore, J. P.5; Kriwattanawong, W.(Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand)
发表期刊NEW ASTRONOMY
2018-05-01
卷号61页码:1-4
DOI10.1016/j.newast.2017.11.002
产权排序第3完成单位
收录类别SCI
关键词Stars: Binaries: Close Stars: Binaries: Eclipsing Stars: Individual (V336 Tra)
摘要This study presents an analysis of photometric light curves and absolute parameters for the EW-type binary V336 TrA. VRI imaging observations were taken in 2013 by using the robotic telescopes PROMPT 4 and PROMPT 5 at Cerro Tololo Inter-American Observatory (CTIO), Chile. The observed light curves were fitted by using the Wilson-Devinney method. The results showed that V336 TrA is a W-type contact binary with a mass ratio of q = 1.396. The binary is a weak contact system with a fill-out factor of f = 15.69%. The system contains components with masses of 0.653 M-circle dot and 0.912 M-circle dot for the hotter and the cooler, respectively. The location of the secondary (less massive) component on the log M-log L diagram was found to be near the TAMS. The component has evolved to be oversize and overluminous. The orbital angular momentum of the binary was found to be log J(o) = 51.61 cgs, less than all detached systems for same mass. The system has undergone angular momentum and/or mass loss, during the binary evolution from the detached to contact system.
项目资助者Chiang Mai University ; NASA grant
语种英语
学科领域天文学
文章类型Article
ISSN1384-1076
URL查看原文
WOS记录号WOS:000424180000001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ALL-SKY SURVEYS ; CONTACT BINARIES ; ECLIPSING BINARIES ; VARIABLE-STARS ; LIGHT CURVES ; EVOLUTION
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12291
专题双星与变星研究组
通讯作者Kriwattanawong, W.(Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand)
作者单位1.Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
2.National Astronomical Research Institute of Thailand, Ministry of Science and Technology, Bangkok, Thailand
3.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, 650216 Kunming, Republic of China
4.University of Chinese Academy of Sciences, 19 A Yuquan Rd., Shijingshan District, 100049 Beijing, Republic of China
5.Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA
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Kriwattanawong, W.,Sarotsakulchai, T.,Maungkorn, S.,et al. A photometric analysis of the neglected EW-type binary V336 TrA[J]. NEW ASTRONOMY,2018,61:1-4.
APA Kriwattanawong, W..,Sarotsakulchai, T..,Maungkorn, S..,Reichart, D. E..,Haislip, J. B..,...&Kriwattanawong, W..(2018).A photometric analysis of the neglected EW-type binary V336 TrA.NEW ASTRONOMY,61,1-4.
MLA Kriwattanawong, W.,et al."A photometric analysis of the neglected EW-type binary V336 TrA".NEW ASTRONOMY 61(2018):1-4.
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