NAOC Open IR  > 光学天文研究部
Lithium depletion in late-type dwarfs
Xiong, D. R.1; Deng, L.2
AbstractUsing a self-consistent dynamic theory of non-local convection, the atmospheric lithium-abundance depletion values of a series of stellar evolutionary models with M = 0.725-1.5 M(circle dot) are calculated, and the results show that the general observed properties of lithium abundance in lower-main-sequence stars can be reproduced by overshooting mixing and gravitational settling. After a careful study of the mechanisms of lithium depletion in stars, it is concluded that overshooting mixing and microdiffusion induced by gravitational settling and radiative acceleration are the two primary depletion mechanisms: for warm stars with M = 1.1 M(circle dot) (or T(e) = 6100 K) microdiffusion dominates, while it is the other way round for cooler objects with M <= 1 M(circle dot) (or T(e) <= 5800 K).
KeywordConvection Stars: Abundances Stars: Evolution Stars: Late-type Open Clusters And Associations: General
Indexed BySCI
WOS IDWOS:000266112600019
Citation statistics
Document Type期刊论文
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, D. R.,Deng, L.. Lithium depletion in late-type dwarfs[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,395(4):2013-2028.
APA Xiong, D. R.,&Deng, L..(2009).Lithium depletion in late-type dwarfs.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,395(4),2013-2028.
MLA Xiong, D. R.,et al."Lithium depletion in late-type dwarfs".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 395.4(2009):2013-2028.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiong, D. R.]'s Articles
[Deng, L.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiong, D. R.]'s Articles
[Deng, L.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiong, D. R.]'s Articles
[Deng, L.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.