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The extent of the solar overshooting zone deduced from Li abundance
Xiong, DR; Deng, L
2002-10-21
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume336Issue:2Pages:511-519
AbstractUsing a non-local convection theory for chemically inhomogeneous stars, a set of models of the solar convective envelope is presented in this work. The (7) Li depletion as a result of convective overshooting is calculated. A model for the solar convective envelope is found which meets the observational constraints from both the Li abundance and depth of the convection zone determined by helioseismology. We argue that there is no general overshooting distance that holds for all physical quantities, and the differences between them can be factors of a few. In the case of solar lithium depletion, the effective overshooting distance at the low convective boundary can be extended to 1.07H(P) (where H-P is the local pressure scaleheight at the boundary), while the corresponding super-radiative temperature zone overshoots to 0.2H(P) in the sense of helioseismology, and the e-folding length for turbulent velocity and temperature is about 0.38H(P) for this solar model.
KeywordConvection Sun : Abundances Sun : Interior
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordMIXING-LENGTH THEORY ; REYNOLDS STRESS APPROACH ; LOW-MASS STARS ; CONVECTION ZONE ; STELLAR EVOLUTION ; NONLOCAL CONVECTION ; MAIN-SEQUENCE ; COMPRESSIBLE CONVECTION ; NUMERICAL SIMULATIONS ; TURBULENT CONVECTION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000178605800020
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11195
Collection院士文集_熊大闰
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Xiong, DR,Deng, L. The extent of the solar overshooting zone deduced from Li abundance[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2002,336(2):511-519.
APA Xiong, DR,&Deng, L.(2002).The extent of the solar overshooting zone deduced from Li abundance.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,336(2),511-519.
MLA Xiong, DR,et al."The extent of the solar overshooting zone deduced from Li abundance".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 336.2(2002):511-519.
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