On the energy of charged black holes in generalized dilaton-axion gravity

TL;DR

This paper calculates the energy distribution of charged black holes in generalized dilaton-axion gravity, exploring different spacetime asymptotics using the Møller prescription and recovering known solutions as special cases.

Contribution

It provides a detailed analysis of energy distribution in charged black holes within a generalized dilaton-axion gravity framework, including asymptotic behaviors and solution recovery.

Findings

Energy distribution varies with spacetime asymptotics

Reproduces known black hole solutions in special cases

Provides insights into energy localization in dilaton-axion gravity

Abstract

In this paper we calculate the energy distribution of some charged black holes in generalized dilaton-axion gravity. The solutions correspond to charged black holes arising in a Kalb-Ramond-dilaton background and some existing non-rotating black hole solutions are recovered in special cases. We focus our study to asymptotically flat and asymptotically non-flat types of solutions and resort for this purpose to the M{\o}ller prescription. Various aspects of energy are also analyzed.