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A note on the mixing length theory and massive star evolution
Deng, LC; Xiong, DR
2001-02-01
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
ISSN1009-9271
Volume1Issue:1Pages:50-56
AbstractIn this paper, we investigate the problem of supersonic convection caused by the application of the usual Mixing Length Theory (MLT), and give a modification to the original expression of the MLT. In the case of the usual MLT, a zone of supersonic convection exists when the stellar model goes into yellow-red supergiant phase. When the modification is applied, the models of late type supergiants possess shallower convective envelopes for a given temperature compared with the normal formalism of the MLT. Therefore the stellar models made with our new formalism move to lower effective temperature by 100-400 K depending on the luminosity of the star. Such a modification does not affect the convective envelope structure of lower luminosity late type stars, as both expressions of the MLT give the same result. in these stars.
KeywordConvection Stars : Supergiants Stars : Massive Stars Stars : Evolution
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTURBULENT CONVECTION ; PULSATIONAL STABILITY ; STELLAR EVOLUTION ; VARIABLE-STARS ; OSCILLATIONS ; MODEL ; DIAGRAM
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000172248600006
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11194
Collection院士文集_熊大闰
Affiliation1.Chinese Acad Sci, Beijing Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.CAS Peking Univ, Joint Beijing Astrophys Ctr, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Deng, LC,Xiong, DR. A note on the mixing length theory and massive star evolution[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2001,1(1):50-56.
APA Deng, LC,&Xiong, DR.(2001).A note on the mixing length theory and massive star evolution.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,1(1),50-56.
MLA Deng, LC,et al."A note on the mixing length theory and massive star evolution".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 1.1(2001):50-56.
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