Five dimensional rotating regular black holes and shadow

Abstract

We present an exact five-dimensional (5D) rotating regular black hole metric, with a deviation parameter k ≥ 0, that interpolates between the 5D Kerr black hole (k = 0) and 5D Kerr-Newman (r ≫ k). This 5D rotating regular black hole is an exact solution of general relativity coupled to nonlinear electrodynamics. Interestingly, for a given value of parameter k there exits a critical angular momentum a = a E which corresponds to extremal rotating regular black hole with degenerate horizons, while for a < a E , one has non-extremal rotating regular black hole with outer and inner horizons. Owing to the correction factor (e −k/r 2 ), which is motivated by the quantum arguments, the ergoregion and black hole shadow are modified.

The shadow and photon sphere of the charged black hole in Rastall gravity

“…Övgün et al obtained the visibility of a spherically symmetric non-commutative BH shadow depends on the non-commutative parameter in Rastall gravity [26]. Then, the BH shadows characteristics have been extensively discussed on the various gravity backgrounds [27][28][29][30][31] etc.…”

Extended phase space thermodynamics of black hole with non-linear electrodynamic field

“…gravity theory [8], gravity [9], and Newmann-Jeans algorithm for rotating BH [10,11], were used to obtain standard solutions of the BH. Phase modification has been used to discuss the thermodynamics of BH for a long time.…”

Rotating Lee–Wick black hole and thermodynamics

“…To do so, we first convert static spherically symmetric Lee-Wick black hole solution into its rotational counterpart, we transform the coordinates of the Lee-Wick metric from the Boyer-Lindquist to the Eddington-Finkelstein. The numerical analysis leads to the possibilities to find non-vanishing values of rotation parameter which corresponds minimum metric function [28,29]. We also investigate the basic thermodynamics properties of rotating Lee-Wick black hole.…”