脉冲星磁球层非热谱的相关性研究  

The correlation analysis of non-thermal spectra from pulsar magneto spheres

作　　者：吴云飞[1] 刘景林[1] 董艳红[1] 曹亚杰[1] 侯宪春[1] 崔虹云[1] 

机构地区：[1]佳木斯大学理学院,黑龙江佳木斯154007

出　　处：《高师理科学刊》2015年第5期30-33,共4页Journal of Science of Teachers＇College and University

基　　金：佳木斯大学2012校级青年基金项目(Lq2012-42);佳木斯大学2013科学技术研究面上项目(L2013-081;L2013-084);佳木斯大学2014科学技术研究面上项目(L2014-020)

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.

关 键 词：脉冲星 非热谱 磁球层 

分 类 号：P141.5[天文地球—天体物理]