NAOC Open IR
富锂巨星的观测研究
符晓婷1; 邓李才1; Kirby Evan N2; Guhathakurta Puragra3
2012
Source Publication天文学进展
ISSN1000-8349
Volume030Issue:004Pages:453
Abstract锂在温度达到T〉2.5×10^6K时即参与’Li(p,a)4He反应燃烧,经典恒星理论推测,当恒星演化到红巨星阶段时,由于向内非常延伸的对流包层的存在,锂的丰度A(Li)=12+lgn(Li)/n(H)1应为A(Li)〈0.5。但是,陆续有处于不同光谱型、不同演化阶段的富锂巨星被发现,其中一些巨星的锂丰度甚至远超出宇宙大爆炸的原初锂丰度,给经典恒星演化模型带来了难题。回顾了从恒星主序到巨星支的锂丰度观测研究历史,并详细介绍了我们对银河系矮星系中富锂巨星的最新发现,总结了所有富锂巨星的观测证据,以及为解决此难题所提出的理论解释。
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/45925
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.加利福尼亚理工学院
3.加利福尼亚大学
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
符晓婷,邓李才,Kirby Evan N,等. 富锂巨星的观测研究[J]. 天文学进展,2012,030(004):453.
APA 符晓婷,邓李才,Kirby Evan N,&Guhathakurta Puragra.(2012).富锂巨星的观测研究.天文学进展,030(004),453.
MLA 符晓婷,et al."富锂巨星的观测研究".天文学进展 030.004(2012):453.
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