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Two W-subtype contact binaries: GQ Boo and V1367 Tau
Zhang J(张嘉)1,2; Qian SB(钱声帮)1,2; Han ZT(韩忠涛)1,2; Wu, Yue3
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-04-01
Volume466Issue:1Pages:1118-1126
DOI10.1093/mnras/stw3153
Contribution Rank第1完成单位
Indexed BySCI
KeywordTechniques: Photometric Binaries: Eclipsing Stars: Evolution
Abstract

Two contact binaries, GQ Boo and V1367 Tau, were observed and analysed with a new method to obtain the absolute parameters. The light-curve analysis shows that both of them are obvious W-subtype contact binaries, with much more massive but apparently cooler components (M-2/M-1 similar or equal to 2 and 4, T-2/T-1 similar or equal to 0.95 and 0.94). The orbital periods were studied using the O-C diagrams, and it is thought that the minima timings were heavily affected by the long-standing magnetic activities on the star surface, so the minima timings cannot represent the real period changes. The mass-radius relationships were proposed by the light-curve analysis alone, which is equivalent to the mean density. The density and temperature can determine the other absolute parameters in most of the time. With the almost complete star parameter space provided by PARSEC, approximate masses and radii were obtained (0.52 +/- 0.08M(circle dot) and 1.01 +/- 0.15M(circle dot) for GQ Boo, and 0.22 +/- 0.01M(circle dot) and 0.92 +/- 0.06M(circle dot) for V1367 Tau). The mass-radius relationship is a neglected useful tool to calculate the mass and radius, especially for the detached binaries.

Funding ProjectOpen Project Programme of Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Development and Reform Commission ; West Light Foundation of The Chinese Academy of Sciences ; Yunnan Natural Science Foundation[Y5XB071001] ; Chinese Natural Science Foundation[11133007] ; Chinese Natural Science Foundation[11325315] ; Chinese Natural Science Foundation[U1631108] ; Chinese Natural Science Foundation[11403056] ; Guangdong Provincial Engineering Technology Research Center for Data Science ; Key Research Programme of the Chinese Academy of Sciences[KGZD-EW-603] ; Science Foundation of Yunnan Province[2012HC011] ; Strategic Priority Research Programme 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences[XDB09010202]
Funding OrganizationOpen Project Programme of Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; National Development and Reform Commission ; West Light Foundation of The Chinese Academy of Sciences ; Yunnan Natural Science Foundation[Y5XB071001] ; Chinese Natural Science Foundation[11133007, 11325315, U1631108, 11403056] ; Guangdong Provincial Engineering Technology Research Center for Data Science ; Key Research Programme of the Chinese Academy of Sciences[KGZD-EW-603] ; Science Foundation of Yunnan Province[2012HC011] ; Strategic Priority Research Programme 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences[XDB09010202]
Language英语
Subject Area天文学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
Archive Date2017-05-23
WOS IDWOS:000398112400077
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordURSAE MAJORIS SYSTEMS ; STAR LIGHT CURVES ; ECLIPSING BINARIES ; RZ-COMAE ; VELOCITY CURVES ; AH-CANCRI ; AM LEONIS ; PARAMETERS ; PERIOD ; CALIBRATIONS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10016
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 AuthorZhang J(张嘉)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang J,Qian SB,Han ZT,et al. Two W-subtype contact binaries: GQ Boo and V1367 Tau[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,466(1):1118-1126.
APA Zhang J,Qian SB,Han ZT,&Wu, Yue.(2017).Two W-subtype contact binaries: GQ Boo and V1367 Tau.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,466(1),1118-1126.
MLA Zhang J,et al."Two W-subtype contact binaries: GQ Boo and V1367 Tau".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 466.1(2017):1118-1126.
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