Strongly screening electron capture for nuclides ^(52,53,59,60)Fe by the Shell-Model Monte Carlo method in pre-supernovae  

作　　者：刘晶晶 彭秋和 刘冬梅 

机构地区：[1]College of Marine Science and Technology,Hainan Tropical Ocean University [2]Department of Astronomy,Nanjing University

出　　处：《Chinese Physics C》2017年第9期129-137,共9页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11565020);Counterpart Foundation of Sanya(2016PT43);Special Foundation of Science and Technology Cooperation for Advanced Academy and Regional of Sanya(2016YD28);Scientific Research Staring Foundation for 515 Talented Project of Hainan Tropical Ocean University(RHDRC201701);Natural Science Foundation of Hainan Province(114012)

摘　　要：The death of massive stars due to supernova explosions is a key ingredient in stellar evolution and stellar population synthesis. Electron capture （EC） plays a vital role in supernova explosions. Using the Shell-Model Monte Carlo method, based on the nuclear random phase approximation and linear response theory model for electrons, we study the strong screening EC rates of 52,53,59,60Fe in pre-supernovae. The results show that the screening rates can decrease by about 18.66%. Our results may become late-type stars, supernova explosion mechanisms and a good foundation for future investigation of the evolution of numerical simulations.The death of massive stars due to supernova explosions is a key ingredient in stellar evolution and stellar population synthesis. Electron capture （EC） plays a vital role in supernova explosions. Using the Shell-Model Monte Carlo method, based on the nuclear random phase approximation and linear response theory model for electrons, we study the strong screening EC rates of 52,53,59,60Fe in pre-supernovae. The results show that the screening rates can decrease by about 18.66%. Our results may become late-type stars, supernova explosion mechanisms and a good foundation for future investigation of the evolution of numerical simulations.

关 键 词：stars： supernovae stars： evolution physical date and processes： nuclear reactions 

分 类 号：P145.3[天文地球—天体物理]