The irreducible mass of a regular rotating black hole

TL;DR

This paper analyzes the energy and irreducible mass of regular rotating black holes within TEGR, highlighting their astrophysical relevance and exploring horizon stability and observer acceleration.

Contribution

It provides an analytical expression for the irreducible mass of regular rotating black holes in TEGR, advancing understanding of their energetic properties.

Findings

Total energy varies with surface location

Irreducible mass expression derived

Inner horizon instability discussed

Abstract

This article presents an analysis of regular rotating black hole solutions within the framework of Teleparallel Equivalent to General Relativity (TEGR). The study evaluates the total energy and derives an analytical expression for the irreducible mass of a regular black hole. The results reveal the significance of these regular black holes as approximations of real astrophysical objects. The investigation explores the behavior of the total energy for different surfaces and its value at spatial infinity. Additionally, the article addresses the instability of the inner horizon and examines the inertial acceleration of an observer inside the inner horizon.