康普顿拖曳超临界堆：GRB提示和余辉方案
Compton dragged supercritical piles: The GRB prompt and afterglow scenario
摘要：
我们研究的背景下的超临界堆模型的伽玛暴的提示和余辉发射。为此，我们进行了自洽的计算，除了通常的质量和能量守恒方程外，还求解了质子、电子和光子的三个随时间变化的动力学方程。我们跟随RBW的演化，因为它扫了拱星物质，并假设扫了电子和质子的能量等于流的洛伦兹因子。当电子通过同步加速器和逆康普顿辐射在短时间尺度上辐射能量时，质子，至少在最初，开始积累而没有任何耗散。然而，随着相对论性质子的累积质量增加，它们可能成为“质子-光子对-产生-同步辐射”网络的超临界物质，因此，它们将储存的能量爆炸性地转移给次级电子-正电子对和辐射。这导致了一个爆发，它有许多类似于在伽玛射线暴瞬发辐射中观察到的特征。在计算中，我们考虑了瞬发辐射对星周物质散射辐射所产生的辐射拖曳力。我们发现，这可以减速的时间尺度上的流比通常的绝热/辐射的相关的要快得多。因此，排放表现出一个陡峭的下降后，立即阶段，与雨燕余辉观测。
英文摘要：
We examine the prompt and afterglow emission within the context of the Supercritical Pile model for GRBs. For this we have performed self-consistent calculations, by solving three time-dependent kinetic equations for protons, electrons and photons in addition to the usual mass and energy conservation equations. We follow the evolution of the RBW as it sweeps up circumstellar matter and assume that the swept-up electrons and protons have energies equal to the Lorentz factor of the flow. While the electrons radiate their energies through synchrotron and inverse Compton radiation on short timescales, the protons, at least initially, start accumulating without any dissipation. As the accumulated mass of relativistic protons increases, however, they can become supercritical to the `proton-photon pair-production - synchrotron radiation' network, and, as a consequence, they transfer explosively their stored energy to secondary electron-positron pairs and radiation. This results in a burst which has many features similar to the ones observed in GRB prompt emission. We have included in our calculations the radiation drag force exerted on the flow from the scattered radiation of the prompt emission on the circumstellar material. We find that this can decelerate the flow on timescales which are much faster than the ones related to the usual adiabatic/radiative ones. As a result the emission exhibits a steep drop just after the prompt phase, in agreement with the Swift afterglow observations.
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