Quasinormal modes of charged regular black hole

The quasinormal modes (QNMs) of a charged regular black hole are calculated in the eikonal approximation. In the eikonal limit, the QNMs of the black hole are determined by the parameters of unstable circular null geodesics. The behavior of the QNMs are compared with the QNMs of a Reisner-Nordstrom black hole by fixing some of the parameters that characterize the black holes and varying others. We observed that the parameter that is related to the effective cosmological constant at small distances determines the behavior of the QNMs of a regular charged black hole.

Automated summary

The quasinormal modes (QNMs) of a charged regular black hole are calculated in the eikonal approximation. It is found that the behavior of the QNMs of a regular charged black hole is determined by the parameter related to the effective cosmological constant at small distances. By comparing with a Reisner-Nordstrom black hole, it is observed that fixing some parameters while varying others affects the QNMs.