Charged dilatonic black holes in dilaton-massive gravity

TL;DR

This paper explores charged dilatonic black holes within massive Einstein-dilaton gravity, revealing diverse horizon structures and analyzing their thermodynamic behaviors in four-dimensional spacetime.

Contribution

It derives new static, spherically symmetric solutions for charged dilatonic black holes in a novel massive Einstein-dilaton gravity framework.

Findings

Diverse horizon structures depending on parameters

Thermodynamic properties vary with metric function behavior

New solutions extend understanding of dilatonic black holes

Abstract

In this paper, we focus on massive Einstein-dilaton gravity including the coupling of dilaton scalar field to massive graviton terms, and then derive static and spherically symmetric solutions of charged dilatonic black holes in four dimensional spacetime. We find that the dilatonic black hole could possess different horizon structures for some suitably parameters. Then, we also investigate the thermodynamic properties of charged dilatonic black holes where $f(r)$ approaches $+\infty$ and $-\infty$, respectively.