从带电多流体观点看电阻性相对论磁流体力学
Resistive relativistic magnetohydrodynamics from a charged multi-fluids perspective
摘要：
我们认为广义相对论磁流体力学从一个带电的多流体的观点，以变分方法作为我们的出发点。我们开发的情况下，两个带电组件的详细说明，占一个唯象的电阻率，对等离子体和质子-电子系统提供了具体的例子。我们讨论冷，低速，等离子体和热系统，我们占一个动态熵分量。冷情况下的结果（符合最近的工作在文献中）提供了一个完整的模型，电阻相对论磁流体力学，澄清的假设，导致各种模型已被用于天体物理学的应用。热情况的分析是（据我们所知）新颖的，占弛豫时间，需要确保因果关系，并证明热通量和电荷之间的显式耦合。
英文摘要：
We consider general relativistic magnetohydrodynamics from a charged multifluids point-of-view, taking a variational approach as our starting point. We develop the case of two charged components in detail, accounting for a phenomenological resistivity, providing specific examples for pair plasmas and proton-electron systems. We discuss both cold, low velocity, plasmas and hot systems where we account for a dynamical entropy component. The results for the cold case (which accord with recent work in the literature) provide a complete model for resistive relativistic magnetohydrodynamics, clarifying the assumptions that lead to various models that have been used in astrophysical applications. The analysis of the hot case is (as far as we are aware) novel, accounting for the relaxation times that are required to ensure causality and demonstrating the explicit coupling between fluxes of heat and charge.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
