火球模型中的GRB光谱参数
GRB spectral parameters within the fireball model
摘要：
伽玛暴的火球模型预测了大量内部冲击的产生，这些冲击有效地加速了带电粒子，并产生了磁场和电场。这些场以相对小尺度的随机波系综的形式产生，因此，加速粒子由于与随机波的相互作用而在空间中扩散，并且因此发射所谓的扩散同步辐射（DSR），这与它们将在大尺度规则磁场中产生的标准同步辐射形成对比。在本文中，我们提出的火球/内部冲击概念内的伽玛射线暴光谱参数的综合建模的第一个结果。我们发现，在强随机磁场中的非微扰DSR发射机制与观测到的能带参数的分布以及它们之间的互相关是一致的;这种分析允许限制GRB物理参数的模型和观测到的分布之间的一致性的要求。
英文摘要：
Fireball model of the GRBs predicts generation of numerous internal shocks, which then efficiently accelerate charged particles and generate magnetic and electric fields. These fields are produced in the form of relatively small-scale stochastic ensembles of waves, thus, the accelerated particles diffuse in space due to interaction with the random waves and so emit so called Diffusive Synchrotron Radiation (DSR) in contrast to standard synchrotron radiation they would produce in a large-scale regular magnetic fields. In this paper we present first results of comprehensive modeling of the GRB spectral parameters within the fireball/internal shock concept. We have found that the non-perturbative DSR emission mechanism in a strong random magnetic field is consistent with observed distributions of the Band parameters and also with cross-correlations between them; this analysis allowed to restrict GRB physical parameters from the requirement of consistency between the model and observed distributions.
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