相对论激波中高能粒子的辐射损失和截止
Radiative losses and cut-offs of energetic particles at relativistic shocks
摘要：
我们研究了相对论冲击波附近电子的加速和同时辐射损失。粒子经历俯仰角扩散，当它们通过费米机制穿过激波时获得能量，并且还在环境磁场中发射同步辐射。一个半解析的方法，它允许我们考虑的行为的光谱截止的形状和截止的变化与颗粒的螺距角。讨论了相对论性喷流的同步辐射，如伽马射线暴源和耀变体中的喷流。
英文摘要：
We investigate the acceleration and simultaneous radiative losses of electrons in the vicinity of relativistic shocks. Particles undergo pitch angle diffusion, gaining energy as they cross the shock by the Fermi mechanism and also emitting synchrotron radiation in the ambient magnetic field. A semi-analytic approach is developed which allows us to consider the behaviour of the shape of the spectral cut-off and the variation of that cut-off with the particle pitch angle. The implications for the synchrotron emission of relativistic jets, such as those in gamma ray burst sources and blazars, are discussed.
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