论文标题
Schwarzschilld-Melvin黑洞时期的热点的同步辐射的偏光图像
Polarized image of synchrotron radiations of hotspots in Schwarzschilld-Melvin black hole spacetime
论文作者
论文摘要
我们重新审视带电颗粒的最内向稳定的圆形轨道（ISCOS），并研究了Schwarzchild-Melvin Black Hole SpaceTime中赤道平面上的这种轨道热点发出的同步子辐射的极化图像。我们获得了对磁场的约束，以保留带电颗粒的ISCOS。特别是，我们确定了磁场强度$ b_c $的临界价值，圆形轨道可以在$ b_c $上具有正面和负角动量，而只有一个分支在$ b_c $以下存活。此外，我们研究并讨论并讨论了带有圆形电荷热点的主要和次要图像，这些热点携带了遥远观察者观察到的极化方向的信息。
We revisit the innermost stable circular orbits (ISCOs) of charged particles and study the polarized images of synchrotron radiations emitted from such orbiting hotspots on the equatorial plane in Schwarzchild-Melvin black hole spacetime. We obtain a constraint on the magnetic field to retain ISCOs for charged particles. In particular, we identify a critical value for the strength of the magnetic field $B_c$ that the circular orbits can have positive and negative angular momentums above $B_c$ while only one branch survive below $B_c$. Furthermore, we investigate and discuss the primary and secondary images of circularly orbiting charged hotspots carrying the information of polarization directions observed by distant observers.
