天文学进展2000，Vol.18Issue(3)：238-248,11.
贫金属星中子俘获元素丰度
The Abundances of Neutron-capture Elements in Metal-poor Stars
摘要
Abstract
The abundances of neutron-capture elements in metal-poor stars, tightly related to the star formation and evolution, provide important clues to the chemical evolution of the Galaxy. Therefore, the study of the nuclear astrophysics has concentrated on understanding the origin of neutron-capture elements in metal-poor stars. In this paper, the nucleosynthetic picture of heavy elements, the concepts of the r-process and the s-process and their nucleosynthetic sites, are introduced. Emphatically, the recent observed abundances of neutron-capture elements in metal-poor stars are stated. Moreover, the progresses of the abundance distributions and the chemical evolution of neutron-capture elements in metal-poor stars are reviewed. Finally, the suggestions for further study with this respect have been put forward.关键词
核合成－中子俘获元素－丰度－贫金属星－银河系－化学演化Key words
nucleosynthesis－neutron capture elements－abundance－metal-poor stars－Galaxy-hemical evolution分类
天文与地球科学引用本文复制引用
张波,李冀,张彦霞,彭秋和..贫金属星中子俘获元素丰度[J].天文学进展,2000,18(3):238-248,11.基金项目
国家自然科学基金资助项目(19973002) （19973002）
