论文标题
适用于次普兰克曲率的常规黑洞的天体物理可观察物
Astrophysical observables for regular black holes with sub-Planckian curvature
论文作者
论文摘要
我们研究了在最近提出的带有亚planckian曲率和Minkowskian核心的常规黑洞上的光子球和极端稳定圆轨道（ESCO）。我们为大地轨道的有效潜力提供了有效的潜力，并确定了圆形光子轨道的半径，并分析了这些轨道的稳定性。我们将分析扩展到没有地平线的紧凑型大型物体（CMO）的背景，其质量低于形成黑洞的最低界限。对于巨大的颗粒，ESCO在CMO期间被双重评估，我们计算了最内向的稳定圆形轨道（ISCO）和最外部稳定的圆形轨道（OSCO）。通过比较Bardeen Black Hole和Hayward Black Hole，还发现，与Minkowskian Core的CMO相位的光子球和ESCO的位置显然与DS Core的CMO相位的位置显然有所不同，DS Core的CMO相位可能提供了一种通过星体观察来区分这两种黑洞的方法。
We investigate the photon sphere and the extremal stable circular orbit (ESCO) for massive particles over a recently proposed regular black holes with sub-Planckian curvature and Minkowskian core. We derive the effective potential for geodesic orbits and determine the radius of circular photon orbits, with an analysis on the stability of these orbits. We extend our analysis to the background of compact massive object (CMO) without horizon, whose mass is below the lowest bound for the formation of a black hole. For massive particles, the ESCOs become double-valued in CMO phase and we calculate the innermost stable circular orbits (ISCO) and the outermost stable circular orbits (OSCO). By comparing wih Bardeen black hole and Hayward black hole, it is also found that the locations of photon sphere and ESCO in CMO phase with Minkowskian core are evidently different from the ones in CMO phase with dS core, which potentially provides a way to distinguish these two sorts of black holes by astronomical observation.
