论文标题
来自嵌入在磁场中的近超旋转黑洞的带电颗粒的加速度
Acceleration of charged particles from near-extremal rotating black holes embedded in magnetic fields
论文作者
论文摘要
本文的目的是评估在磁场存在下，在近乎超级旋转黑洞附近的带电测试颗粒的运动。 Euler-Lagrange运动方程和有效的潜在方法用于表征赤道平面中的运动。如果考虑到旋转黑洞的积聚过程，这种方法具有特殊的意义。在一般研究中，关于积聚的一般研究主要集中在赤道平面中移动的最简单的颗粒情况下。在这里，可以认为最初围绕某些特定轨道移动的颗粒可能会被沿$θ$方向的踢而扰动，从而产生其他可能的轨道。我们证实了特定的磁场大小范围的超高能量宇宙射线可能是在AGN的中心产生的，因为可能会通过在快速旋转黑色孔的地平线附近碰撞的颗粒碰撞而产生超高的质量中心能量。
The aim of the present article is to evaluate the motion of charged test particles in the vicinity of a near-extremal rotating black hole in the presence of magnetic fields. Euler-Lagrange motion equations and effective potential methods are used to characterize the motion out of the equatorial plane. Such approach is of peculiar significance if it is considered, e.g., accretion processes onto rotating black holes. In general investigations concerning accretion focus mostly on the simplest case of particles moving in the equatorial plane. Here it will be considered that particles initially moving around some particular orbit may be perturbed by a kick along the $θ$ direction, giving rise to other possible orbits. We confirm the possibility that ultra high energy cosmic rays would be produced at the very center of AGNs, for a specific range of magnetic field magnitudes, since it is possible that ultra-high center-of-mass energies can be produced by particles colliding near the horizon of fastly rotating black holes.
