An explanation of the correlations of abundance ratio between neutron-capture elements and iron group elements in Ba stars |
| |
Authors: | Xiao-jing Shen Bo Zhang Hong-jie Li Shuai Liang Wen-yuan Cui |
| |
Institution: | 1. Department of Physics, Hebei Normal University, 113 Yuhua Dong Road, Shijiazhuang, 050016, China 2. Hebei Advanced Thin Films Laboratory, Shijiazhuang, 050016, China 3. School of Sciences, Hebei University of Science and Technology, Shijiazhuang, 050018, China
|
| |
Abstract: | The chemical abundances of the Ba stars are excellent information for setting constraints on models of s-processes nucleosynthesis. In this work, we adopt a new analysis approach to determine the relative contributions from individual neutron-capture processes to the elemental abundances of Ba stars. We find that the production of s-process elements should accompany by the production of Cu and Zn, the calculated results on Cu and Zn abundances are in quite good agreement with observed data. The observed Cu, Zn/Fe]–s/Fe] correlations of Ba stars can be explained by binary scenario in which Ba stars formed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|