Point mass Cosmological Black Holes

TL;DR

This paper models cosmological black holes as point masses within an expanding de Sitter universe, analyzing their properties including horizons, redshift, and geodesics, and extending to charged and rotating cases.

Contribution

It introduces a model for dynamical cosmological black holes as point masses in de Sitter space, including charged and rotating black holes, with detailed analysis of their properties.

Findings

Black holes can be modeled as point masses in de Sitter space.

The study characterizes horizons, redshift, and geodesic structures of these black holes.

Charged and rotating black holes are incorporated into the model.

Abstract

Real black holes in the universe are located in the expanding accelerating background which are called the cosmological black holes. Hence, it is necessary to model these black holes in the cosmological background where the dark energy is the dominant energy. In this paper, we argue that most of the dynamical cosmological black holes can be modeled by point mass cosmological black holes. Considering the de Sitter background for the accelerating universe, we present the point mass cosmological background in the cosmological de Sitter space time. Our work also includes the point mass black holes which have charge and angular momentum. We study the mass, horizons, redshift structure and geodesics properties for these black holes.