Phantom energy accretion onto a black hole in Horava Lifshitz gravity

TL;DR

This paper investigates how phantom energy accretes onto a Kehagias-Sfetsos black hole within Hořava-Lifshitz gravity, revealing black hole mass decrease and conditions for critical accretion, with results generalizable to Schwarzschild black holes.

Contribution

It derives equations for phantom flow near the black hole and analyzes critical accretion conditions in Hořava-Lifshitz gravity, extending understanding of black hole evolution under exotic energy.

Findings

Black hole mass decreases due to phantom energy accretion.

Critical accretion phenomena depend on parameter values.

Results reduce to Schwarzschild case in the appropriate limit.

Abstract

In this Letter, we examine the phantom energy accretion onto a Kehagias-Sfetsos black hole in Ho$\check{r}$ava Lifshitz gravity. To discuss the accretion process onto the black hole, the equations of phantom flow near the black hole have been derived. It is found that mass of the black hole decreases because of phantom accretion. We discuss the conditions for critical accretion. Graphically, it has been found that the critical accretion phenomena is possible for different values of parameters. The results for the Schwarzschild black hole can be recovered in the limiting case.