论文标题
相对论磁性流动波的另一种修改：电子热惯性
Yet Another Modification of Relativistic Magnetohydrodynamic Waves: Electron Thermal Inertia
论文作者
论文摘要
这项研究研究了相对论扩展磁流失动力学（RXMHD）中波的性质，其中包括霍尔和电子热惯性效应。我们专注于电子温度是超偏移主义的情况，因此，电子热惯性在质子惯性尺度接近时变为有限。我们得出了RXMHD的线性色散关系，发现大厅和电子热惯性效应夫妇与位移电流，除了缓慢，快速和alfvén波外，还会产生三个超小观波。我们还表明，快速和alfvén波的相位和组速度表面被大厅和电子热惯性效应扭曲。在一系列尺度上，快速波的组速度小于Alfvén和慢速波的速度。这些发现适用于低亮度积聚流的漏斗基础附近的区域，其中电子可以是超偏移主义的。
This study investigates the properties of waves in relativistic extended magnetohydrodynamics (RXMHD), which includes Hall and electron thermal inertia effects. We focus on the case when the electron temperature is ultrarelativistic, and thus, the electron thermal inertia becomes finite at near the proton inertial scale. We derive the linear dispersion relation of RXMHD and find that the Hall and electron thermal inertia effects couple with the displacement current, giving rise to three superluminous waves in addition to the slow, fast, and Alfvén waves. We also show that the phase- and group-velocity surfaces of fast and Alfvén waves are distorted by the Hall and electron thermal inertia effects. There is a range of scales where the group velocity of fast wave is smaller than that of the Alfvén and slow waves. These findings are applicable to a region near the funnel base of low-luminosity accretion flows where electrons can be ultrarelativistic.
