The Pulsation Induced by Mass Transfer in Critically Rotating Stars
Wang, Jiang-Tao1; Song, Han-Feng1,2,3; Song, HF
发表期刊CHINESE PHYSICS LETTERS
2016-09-01
卷号33期号:9
DOI10.1088/0256-307X/33/9/099702
收录类别SCI
摘要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.
项目资助者National 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
语种英语
学科领域Physics
文章类型Article
ISSN0256-307X
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WOS记录号WOS:000388324800034
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
关键词[WOS]STELLAR ASTROPHYSICS MESA ; BINARIES ; MODULES ; EVOLUTION
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9707
专题中国科学院天体结构与演化重点实验室
通讯作者Song, HF
作者单位1.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
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Wang, Jiang-Tao,Song, Han-Feng,Song, HF. The Pulsation Induced by Mass Transfer in Critically Rotating Stars[J]. CHINESE PHYSICS LETTERS,2016,33(9).
APA Wang, Jiang-Tao,Song, Han-Feng,&Song, HF.(2016).The Pulsation Induced by Mass Transfer in Critically Rotating Stars.CHINESE PHYSICS LETTERS,33(9).
MLA Wang, Jiang-Tao,et al."The Pulsation Induced by Mass Transfer in Critically Rotating Stars".CHINESE PHYSICS LETTERS 33.9(2016).
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