论文标题
带电颗粒的圆形轨道和极化图像，绕着具有弱磁场的Kerr黑洞旋转
Circular orbits and polarized images of charged particles orbiting Kerr black hole with a weak magnetic field
论文作者
论文摘要
在这项工作中，我们研究了带电颗粒的圆形运动及其在浸入弱磁场中的Kerr黑洞周围的极化图像。我们特别注意磁场和电荷与质量比的情况都不大，因此沿着径向运动的有效电势将大约降低到立方形式，以便我们可以根据电荷颗粒的能量和角动量在分析上表达最内向稳定的圆形轨道的半径。此外，我们计算了这些颗粒的极化同步加速器辐射，并针对各种自旋，观察角以及前体和逆行轨道获得了半分析的极化图像。特别是，我们发现这些参数对极化旋转和极化通量的大小有重大影响。
In this work, we study circular motions of charged particles and their polarized images around the Kerr black hole immersed in a weak magnetic field. We pay special attention to the case that both the magnetic field and the charge-to-mass ratio are not big, thus the effective potential along the radial motion reduce to a cubic form approximately so that we can express the radius of the innermost stable circular orbit analytically in terms of the energy and angular momentum of charged particles. Moreover, we computed the polarized synchrotron radiations of these particles and obtained the polarized images semi-analytically for various spins, observational angles and prograde and retrograde orbits. In particular, We find that these parameters have significant impacts on the polarization rotation and the magnitude of the polarization flux.
