摘要
In present study,the relations between the ratios of the heavy to light s-element(slow neutron captrue element)abundances and the average neutron exposure are calculated for the intrinsic and extrinsic AGB stars,respectively.In addition,the inverse correlation of these ratios with metallicity is also presented and interpreted quantitatively.This work is based on the evolution of the heavy element abundances of the intrinsic AGB stars,and the calculation on the heavy element overabundances of the extrinsic AGB stars.
作者
ZHANG Bo
LIU Jun-hong
LIANG Yan-chun
PENG Qiu-he
张波;刘俊红;梁艳春;彭秋和(Department of Physics,Hebei Normal University,Shijiazhuang 050016;Department of Physics,Shijiazhuang Teachers College,Shijiazhuang 050041;Department of Astronomy,Nanjing University,Nanjing,210093)
基金
Supported by the National Natural Science Foundation of China under Grant No.19673008.
