A note on the mixing length theory and massive star evolution

	A note on the mixing length theory and massive star evolution
	Deng, LC; Xiong, DR
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2001-02-01
卷号	1 期号:1 页码:50-56
关键词	convection stars : supergiants stars : massive stars stars : evolution
英文摘要	In 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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000172248600006
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8614]
专题	国家天文台_光学天文研究部
作者单位	1.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
推荐引用方式 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.