脉冲星磁球层非热谱的相关性研究

摘要

利用蒙特卡洛方法,模拟了脉冲星磁球层中全极冠级联过程的非热辐射.对一给定的位于中子星表面以上一定高度的平行于开场线的电场,原初粒子由该平行电场加速并通过曲率辐射损失其能量,曲率辐射产生的光子通过对产生过程被转化为电子-正电子对,随后这些电子-正电子对通过量子化同步辐射和逆康普顿散射发射光子,从而引发级联过程.在这种情形下,对不同的参数,计算了脉冲星的非热光子谱,并研究了其磁球层非热谱的相关特性.%The non-thermal emission from pulsar magnetosphere is simulated by using Monte Carlo method. For a given electriceld parallel to openeld lines located at some height above the surface of a neutron star,primary electrons are accelerated by the parallel electriceld and lose their energies by curvature radiation,these photons are converted to electron-positron pairs,and the pairs emit photons through subsequent quantum synchrotron radiation and inverse Compton scattering,leading to a cascade.In such a scenario,the non-thermal photon spectra for different pulsar parameters is calculated,and the correlation of non-thermal spectra from pulsar magneto spheres is reseached.