A Study on Formation Mechanism of Relativistic Jets due to Magnetic Reconnection around Kerr Black Hole

最近，磁驱动喷流模型成为宇宙相对论喷流形成机制的一个新的研究方向。为了研究地层中磁场重联的影响，我们必须进行有限电阻率广义相对论磁流体动力学（电阻GRMHD）的数值模拟。当我们使用标准的相对论欧姆定律时，我们不可避免地要打破因果关系。为了解决这个问题，我们推导了一组广义GRMHD方程，并揭示了它的性质。这些结果为电阻性GRMHD模拟提供了基础。

Recently, a model of magnetically-driven jet has become promising as a formation mechanism of cosmic relativistic jets. To investigate the influence of magnetic reconnection in the formation, we have to perform a numerical simulation of general relativistic magnetohydrodynamics with finite resistivity (resistive GRMHD). When we use the standard relativistic Ohm's law, we can not avoid the break-down of causality. To fix this problem, we derived a set of generalized GRMHD equations and revealed its nature. These results provide a base of the resistive GRMHD simulations.