Lithium rich red giant branch stars

被引：4
|
作者：
de la Reza, R. [1 ]
机构：
[1] Observ Nacl MCT, Rio De Janeiro, Brazil
来源：
Chemical Abundances and Mixing in Stars in the Milky Way and Its Satellites | 2006年
关键词：
D O I：
10.1007/978-3-540-34136-9_68
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Lithium rich K giant stars are found at the luminosity bump of the first ascending red giant branch. The discovery of these stars has given a recent impulse to advances in the theory of stellar evolution. Important connections appeared between thermonuclear processes, rapid mixing, surface activity, rotation and mass loss episodes. How could such lithium surface enrichment be produced? Two concurring scenarios offer completely different explanations: an internal stellar origin and an external one in which planets are engulfed. We will discuss the present state of these matters.
引用
收藏
页码：196 / 199
页数：4
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