A model for ultrarelativistic spherically symmetric Pre-Hawking radiating gravitational collapse

TL;DR

This paper introduces a simplified yet detailed model of gravitational collapse that includes thermal pre-Hawking radiation, using Einstein equations with an ultrarelativistic stress-energy tensor in a spherically symmetric setting.

Contribution

It provides a new model for ultrarelativistic gravitational collapse incorporating pre-Hawking radiation effects with a time-dependent metric.

Findings

The model captures thermal emission during collapse.

Particles either fall inward or escape radially.

The approach integrates Einstein equations with ultrarelativistic matter.

Abstract

In this paper we present a simple but non-simplistic model of gravitational collapse with thermal emission of pre-Hawking radiation. We apply Einstein equations to a time-dependant spherically symmetric metric and an ultrarelativistic stress-energy tensor. In our model, particles either radially approach the center of the star as collapsing matter, or radially flee from it.