Primordial black hole formation from cosmological fluctuations
Cosmology and Nongalactic Astrophysics
2024-12-13 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Primordial black holes (PBHs) are those which may have formed in the early Universe and affected the subsequent evolution of the Universe through their Hawking radiation and gravitational field. To constrain the early Universe from the observational constraint on the abundance of PBHs, it is essential to determine the formation threshold for primordial cosmological fluctuations, which are naturally described by cosmological long-wavelength solutions. I will briefly review our recent analytical and numerical results on the PBH formation.
Keywords
Cite
@article{arxiv.1601.06235,
title = {Primordial black hole formation from cosmological fluctuations},
author = {Tomohiro Harada},
journal= {arXiv preprint arXiv:1601.06235},
year = {2024}
}
Comments
6 pages, 4 figures, to appear in the proceedings of the conference HTGRG-2 (Quy Nhon, Vietnam, 2015), figure problems fixed