Analytical solutions for the slow neutron capture process of heavy element nucleosynthesis  

作　　者：吴开谡 

机构地区：[1]Beijing University of Chemical Technology

出　　处：《Chinese Physics B》2009年第9期4049-4057,共9页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No 10447141);the Youth Foundation of Beijing University of Chemical Technology,China (Grant No QN0622)

摘　　要：In this paper, the network equation for the slow neutron capture process （s-process） of heavy element nucleosynthesis is investigated. Dividing the s-process network reaction chains into two standard forms and using the technique of matrix decomposition, a group of analytical solutions for the network equation are obtained. With the analytical solutions, a calculation for heavy element abundance of the solar system is carried out and the results are in good agreement with the astrophysical measurements.In this paper, the network equation for the slow neutron capture process （s-process） of heavy element nucleosynthesis is investigated. Dividing the s-process network reaction chains into two standard forms and using the technique of matrix decomposition, a group of analytical solutions for the network equation are obtained. With the analytical solutions, a calculation for heavy element abundance of the solar system is carried out and the results are in good agreement with the astrophysical measurements.

关 键 词：S-PROCESS network equation analytical solution element abundance 

分 类 号：P142[天文地球—天体物理] O571.4[天文地球—天文学]