期刊信息
- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Calactic Chemical Evolution of Primary Metal Elements: an Analytical Model
摘要/Abstract
摘要:
利用瞬时循环近似 ,考虑元素产率随金属丰度的变化 ,得出了主要金属元素星系化学演化的分析解 .结合恒星核合成结果 ,计算了银河系中 O元素、Mg元素、Na元素、Sc元素等的丰度随金属丰度的变化规律 ,并与观测结果进行了比较
Abstract:
We model the galactic chemical evolution of primary metal element by using theinstantaneous recycling approximation and the yield metal-dependent which enable the problem to behandled analytically. Based on the results of nucleosynthesis, the abundances of oxygen, magnesium,natrium and scandium with [Fe /H] are calculated and compared with the observations.
关键词
Key words:
metal elements
;
abundances
;
elemental productivity