Lithium Depletions in Late-type Dwarfs

被引：0

作者：

Xiong, D. R. ^{[1
]}

Deng, L. ^{[2
]}

机构：

[1] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

ART OF MODELLING STARS IN THE 21ST CENTURY | 2008年 / 252期

关键词：

Convection; star: abundance-star: late-type-stars: evolution; open clusters and associations: general;

D O I：

10.1017/S1743921308022448

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a self-consistant dynamic theory of non-local convection in chemically inhomogeneous stars, the lithium depletion in MS stars of masses 0.725-1.5 M-circle dot are calculated. Both of the overshooting and microdiffusion are included in a consistent way. The comparisons of theretical reasults with the observed Li depletions in open clusters show that the general characters of Li depletions can be reproduced by theory. The overshooting mixing and microdiffusion induced by gravitational setting and radiative accelerations may be two main mechanisms of Li depletion.

引用

页码：61 / +

页数：4

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