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Investigations into the thermal non-equilibrium of W UMa-type contact binaries
Xiong X(熊逍)1,2,3,4; Liu L(刘亮)1,2,3,4; Qian SB(钱声帮)1,2,3,4
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2018-05-01
Volume18Issue:5
DOI10.1088/1674-4527/18/5/55
Contribution Rank第1完成单位
Indexed BySCI
KeywordStars: Binaries: Close Stars: Binaries: Eclipsing Stars: Evolution
Abstract

Traditionally, some physical details (e.g., magnetic braking, energy transfer, angular momentum loss, etc.) have to be taken into consideration during investigations into the evolution of contact binaries. However, the real evolutionary processes which usually contain several of these physical mechanisms are very complicated as a result of strong interaction between components. To avoid dealing with these factors, a linear relationship is applied to the temperatures of components. It is found that the higher the mass ratio (M-2/M-1) of a contact system, the weaker the deviation from thermal equilibrium. On this basis, a variation trend of fill-out factor (f) changing with mass ratio can be inferred, which is consistent with observations. Moreover, if we stick to this point of view, it should be natural that the number of semi-detached binaries in the predicted broken-contact phase of relaxation oscillations is less than the number in the contact phase.

Funding ProjectYunnan Natural Science Foundation[2016FB004] ; Young Academic and Technology Leaders project of Yunnan Province[2015HB098] ; National Natural Science Foundation of China[11773066] ; National Natural Science Foundation of China[11403095] ; National Natural Science Foundation of China[11325315] ; Key Research Programme of the Chinese Academy of Sciences[KGZD-EW-603]
Funding OrganizationYunnan Natural Science Foundation[2016FB004] ; Young Academic and Technology Leaders project of Yunnan Province[2015HB098] ; National Natural Science Foundation of China[11773066, 11403095, 11325315] ; Key Research Programme of the Chinese Academy of Sciences[KGZD-EW-603]
Language英语
Subject Area天文学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS IDWOS:000432273900007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordUrsae Majoris Systems ; Physical Parameters ; Overcontact Binary ; Light Curves ; Eclipsing Binaries ; Components ; Stars ; Evolution ; Period ; Deep
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12387
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 AuthorXiong X(熊逍)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xiong X,Liu L,Qian SB. Investigations into the thermal non-equilibrium of W UMa-type contact binaries[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(5).
APA Xiong X,Liu L,&Qian SB.(2018).Investigations into the thermal non-equilibrium of W UMa-type contact binaries.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(5).
MLA Xiong X,et al."Investigations into the thermal non-equilibrium of W UMa-type contact binaries".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.5(2018).
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