We present a numerical study of gamma-ray burst-circumburst medium interaction and plasma preconditioning via Compton scattering. The simulation tool employed here-the PhotonPlasma code-is a unique hybrid model; it combines a highly parallelized (Vlasov) particle-in-cell approach with continuous weighting of particles and a sub-Debye Monte Carlo binary particle interaction framework. Our first results from 3D simulations with this new simulation tool suggest that magnetic fields and plasma density filaments are created in the wakefield of prompt gamma-ray bursts, and that the photon flux density gradient has a significant impact on particle acceleration in the burst head and wakefield. We discuss some possible implications of the circumburst medium preconditioning for the trailing afterglow, and also discuss which additional processes will be needed to improve future studies within this unique and powerful simulation framework.
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机译：我们提出了通过康普顿散射对伽马射线爆发-周向介质相互作用和等离子体预处理的数值研究。这里使用的仿真工具-PhotonPlasma代码-是一个独特的混合模型。它结合了高度并行化（Vlasov）的单元内粒子方法和连续的粒子权重以及Subby Debye Monte Carlo二元粒子相互作用框架。我们使用此新模拟工具进行的3D模拟的第一批结果表明，磁场和等离子体密度灯丝是在瞬发伽马射线爆发的尾波场中产生的，光子通量密度梯度对爆发头和加速过程中的粒子加速度具有重大影响。韦克菲尔德。我们讨论了周向介质预处理对余辉的可能影响，并讨论了在此独特而强大的模拟框架内，需要哪些附加过程来改进未来的研究。
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