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熊大闰; 邓李才
Source Publication天文学报
Abstract根据化学非均匀恒星的非局部对流理论,计算了质量为0.7-1.15M(?)恒星主序演化模型锂和铍的衰减,并将理论和不同年龄疏散星团锂丰度的观测进行了比较.结果表明,贯穿对流混合能重现温度低于6400 K的晚型主序星锂丰度观测的一般性质.贯穿对流混合可能是晚型矮星锂衰减的一种重要机制.
Other AbstractUsing a non-local stellar convection theory for chemically inhomogeneous stars, the depletions of Lithium and Beryllium in the main-sequence models of 0.7 - 1.15M⊙are calculated. The comparison between the calculated and the observed values of depletions in open clusters with different ages is made. The results show that the general properties of Lithium depletions among the late type main-sequence stars with Teff< 6400 K can be reproduced by convective overshooting mixing process. It is concluded that c...
Keyword物理数据与过程 对流 恒星 元素丰度 晚型 演化 银河系 疏散星团和星协
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Recommended Citation
GB/T 7714
熊大闰,邓李才. 低部主序恒星锂和铍的衰减[J]. 天文学报,2007,48(2):165-180.
APA 熊大闰,&邓李才.(2007).低部主序恒星锂和铍的衰减.天文学报,48(2),165-180.
MLA 熊大闰,et al."低部主序恒星锂和铍的衰减".天文学报 48.2(2007):165-180.
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