Revisiting the semiclassical gravity scenario for gravitational collapse

TL;DR

This paper explores whether observed dark, compact objects are true black holes by revisiting semiclassical gravity, proposing alternative collapse outcomes that could replace classical black holes.

Contribution

It introduces a revised semiclassical collapse scenario suggesting the formation of alternative compact objects instead of traditional black holes.

Findings

Alternative objects could form from stellar collapse.

These objects may explain observations without classical black hole issues.

Revises understanding of gravitational collapse in semiclassical gravity.

Abstract

The existence of extremely dark and compact astronomical bodies is by now a well established observational fact. On the other hand, classical General Relativity predicts the existence of black holes which fit very well with the observations, but do lead to important conceptual problems. In this contribution we ask ourselves the straightforward question: Are the dark and compact objects that we have observational evidence for black holes in the sense of General Relativity? By revising the semiclassical scenario of stellar collapse we find out that as the result of a collapse some alternative objects could be formed which might supplant black holes.