Effects of ultra-strong magnetic field on electron capture rates of 55C0 and 56Ni in the magnetar surrounding

The electron capture rates of 55Co and 56Ni in the ultra-strong magnetic field at four typical temperature- density points have been calculated using the nuclear shell model and Landan energy levels quantized approximate correction. The results show that the electron capture rates of 55Co and 56Ni are increased greatly in the ultra-strong magnetic field, and even exceed two orders of magnitude in the range from 4.414×10^13G to 2.207×10^27 G. The change rate of electron abundance, ye, of 55Co and 56Ni under the condition of B=4.414×10^15G in the magnetar surrounding has been calculated and discussed, the proportions of ye of 55Co and 56Ni in the total Ye have been reduced by 50 percent in all more than the condition without a magnetic field.     

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

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.     

产生正弦光栅的二值化面积编码新方法

基于面积编码的二值化算法,提出了一定改进,即在对二值化模板进行填充时,用分散的、尽可能等间距的填充方法代替分块的、非等间隔的填充方法,并将此光栅制作出来用于三维形貌测量.利用二元编码光栅的频谱分布特征和光学系统固有的低通滤波特征,可以将二元分布的模板转化为测量区域的正弦分布,同时又滤去了量化噪声,得到质量较好的正弦光场...     

Effects of ultra-strong magnetic field on electron capture rates of~(55)Co and ~(56)Ni in the magnetar surrounding

The electron capture rates of~(55)Co and~(56)Ni in the ultra-strong magnetic field at four typical temperaturedensity points have been calculated using the nuclear shell model and Landau energy levels quantized approximate correction.The results show that the electron capture rates of~(55)Co and~(56)Ni are increased greatly in the ultra-strong magnetic field,and even exceed two orders of magnitude in the range from 4.414×10~(13)G to 2.207×l0~(17)G.The change rate of electron abundance,Y_e,of~(55)Co and~(56)Ni under the condition of B=4.414×l0~(15)G in the magnetar surrounding has been calculated and discussed,the proportions of Y_e of~(55)Co and~(56)Ni in the total Y_e have been reduced by 50percent in all more than the condition without a magnetic field.