Why the Universal Threshold for Primordial Black Hole Formation is Universal
Cosmology and Nongalactic Astrophysics
2024-05-09 v1 General Relativity and Quantum Cosmology
Abstract
We show why the threshold for primordial black hole formation is universal (independent from the shape of the perturbation) when expressed in terms of the volume averaged compaction function. The proof is rooted in the self-similarity of the gravitational collapse phenomenon at criticality.
Keywords
Cite
@article{arxiv.2405.05208,
title = {Why the Universal Threshold for Primordial Black Hole Formation is Universal},
author = {Alex Kehagias and Davide Perrone and Antonio Riotto},
journal= {arXiv preprint arXiv:2405.05208},
year = {2024}
}
Comments
7 pages