Note on regular magnetic black hole

Abstract

A non-singular magnetic black hole in nonlinear electrodynamics has been introduced recently whose Lagrangian contains an exponential factor [15]. We show that such regular black holes are available without resorting to a transcendental factor. A much simpler example of regular magnetic black hole solution is presented which admits the Schwarzschild limit as well as the unconditional unitarily condition. (C) 2019 The Authors. Published by Elsevier B.V.