Charged Black Holes in Phantom Cosmology

TL;DR

This paper explores how phantom energy accretion affects charged black holes, revealing conditions that could lead to naked singularities and challenge cosmic censorship.

Contribution

It investigates the accretion of phantom energy onto charged black holes and identifies conditions that may violate cosmic censorship conjecture.

Findings

Accretion reduces black hole mass in the presence of phantom energy.

Charge-to-mass ratio constraints restrict accretion.

Potential formation of naked singularities as charge increases.

Abstract

In the classical relativistic regime, the accretion of phantom-like dark energy onto a stationary black hole reduces the mass of black hole. Here we have investigated the accretion of phantom energy onto a stationary charged black hole and have determined the condition under which this accretion is possible. This condition restricts the mass to charge ratio in a narrow limit. This condition also challenges the validity of the cosmic censorship conjecture since a naked singularity is eventually produced as magnitude of charge increases compared to mass of black hole.