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On the effect of turbulent anisotropy on pulsation stability of stars
Zhang, Chun-Guang1; Deng, Li-Cai1; Xiong, Da-Run2
2017-02-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume17Issue:3Pages:10
Corresponding AuthorZhang, Chun-Guang(cgzhang@nao.cas.cn)
AbstractWithin the framework of a non- local time- dependent stellar convection theory, we study in detail the effect of turbulent anisotropy on stellar pulsation stability. The results show that anisotropy has no substantial influence on pulsation stability of g modes and low- order (radial order n(r) < 5) p modes. The effect of turbulent anisotropy increases as the radial order increases. When turbulent anisotropy is neglected, most high- order ( n(r) > 5) p modes of all low-temperature stars become unstable. Fortunately, within a wide range of the anisotropic parameter c(3), stellar pulsation stability is not sensitive to the specific value of c(3.) Therefore it is safe to say that calibration errors of the convective parameter c (3) do not cause any uncertainty in the calculation of stellar pulsation stability.
Keywordconvection stars: interiors stars: oscillations
DOI10.1088/1674-4527/17/3/29
WOS KeywordEQUATION-OF-STATE ; STELLAR ENVELOPES ; CONVECTION ; OPACITIES ; MODELS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000397210100008
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23238
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, Chun-Guang
Affiliation1.Chinese Acad Sci, Key Lab Optic Astron, Natl Astron Observatories, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Chun-Guang,Deng, Li-Cai,Xiong, Da-Run. On the effect of turbulent anisotropy on pulsation stability of stars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(3):10.
APA Zhang, Chun-Guang,Deng, Li-Cai,&Xiong, Da-Run.(2017).On the effect of turbulent anisotropy on pulsation stability of stars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(3),10.
MLA Zhang, Chun-Guang,et al."On the effect of turbulent anisotropy on pulsation stability of stars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.3(2017):10.
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