Electron capture rates for iron group nuclei at the surface of magnetar  

作　　者：罗夏 杜军 李平平 

机构地区：[1]Institute of Theoretical Physics, China West Normal University [2]National Astronomical Observatories, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2013年第12期603-606,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grand No.U1331121 and 11273020)

摘　　要：Effects of an ultra-strong magnetic field on electron capture rates for 55Co are analyzed in the nuclear shell model and under the Landau energy levels quantized approximation in the ultra-strong magnetic field, and the electron capture rates on 10 abundant iron group nuclei at the surface of a magnetar are given. The results show that electron capture rates on 55Co are increased greatly in the ultra-strong magnetic field, by about 3 orders of magnitude generally. These conclusions play an important role in future study of the evolution of magnetars.Effects of an ultra-strong magnetic field on electron capture rates for 55Co are analyzed in the nuclear shell model and under the Landau energy levels quantized approximation in the ultra-strong magnetic field, and the electron capture rates on 10 abundant iron group nuclei at the surface of a magnetar are given. The results show that electron capture rates on 55Co are increased greatly in the ultra-strong magnetic field, by about 3 orders of magnitude generally. These conclusions play an important role in future study of the evolution of magnetars.

关 键 词：electron capture magnetar 

分 类 号：O571.1[理学—粒子物理与原子核物理]