YNAO OpenIR  > 中国科学院天体结构与演化重点实验室
The Pulsation Induced by Mass Transfer in Critically Rotating Stars
Wang, Jiang-Tao1; Song, Han-Feng1,2,3
Source PublicationCHINESE PHYSICS LETTERS
2016-09-01
Volume33Issue:9Pages:4
DOI10.1088/0256-307X/33/9/099702
Indexed BySCI
Abstract

The structural characteristics of the critically rotating accretor in binaries are investigated during rapid mass transfer. It is found that the accretor is subjected to periodic pulsation due to accretions and rejections of mass and angular momentum. The gainer attempts to attain both hydrostatic and thermal balances. This physical process can cause the thermal structure of the accreting star to fluctuate with a period of similar to 0.19 y. Stellar wind can be enhanced by a factor of similar to 1.25 x 10(4) when the accretor approaches break-down velocity. Surface entropy and density decrease with the increase of the stellar radius due to the fact that rapid rotation leads to a reduction in the number density and surface temperature. The rotational energy has the same trend as stellar radius due to stellar expansion. Surface opacity which is extremely sensitive to surface temperature has an opposite trend to stellar radius. Moreover, the rate of nuclear energy must be adjusted due to mass removal or accretion at the stellar surface.

Funding ProjectNational Natural Science Foundation of China[11463002] ; Open Foundation of Key Laboratory for the Structure and Evolution of Celestial Objects of Chinese Academy of Sciences[OP201405] ; Western Project of State Scholarship Foundation by the China Scholarship Council
Funding OrganizationNational Natural Science Foundation of China[11463002] ; Open Foundation of Key Laboratory for the Structure and Evolution of Celestial Objects of Chinese Academy of Sciences[OP201405] ; Western Project of State Scholarship Foundation by the China Scholarship Council
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0256-307X
URL查看原文
WOS IDWOS:000388324800034
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS KeywordStellar Astrophysics Mesa ; Binaries ; Modules ; Evolution
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9707
Collection中国科学院天体结构与演化重点实验室
Corresponding AuthorSong, Han-Feng
Affiliation1.College of Science, Guizhou University, Guiyang 550025
2.Geneva Observatory, University of Geneva, Sauverny CH-1290, Switzerland
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011
Recommended Citation
GB/T 7714
Wang, Jiang-Tao,Song, Han-Feng. The Pulsation Induced by Mass Transfer in Critically Rotating Stars[J]. CHINESE PHYSICS LETTERS,2016,33(9):4.
APA Wang, Jiang-Tao,&Song, Han-Feng.(2016).The Pulsation Induced by Mass Transfer in Critically Rotating Stars.CHINESE PHYSICS LETTERS,33(9),4.
MLA Wang, Jiang-Tao,et al."The Pulsation Induced by Mass Transfer in Critically Rotating Stars".CHINESE PHYSICS LETTERS 33.9(2016):4.
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