Primordial naked singularities

TL;DR

This paper explores the possibility that primordial gravitational collapse could produce naked singularities, which may influence observable universe features and have implications for dark matter, expanding the understanding of early universe phenomena.

Contribution

It introduces the concept that primordial collapse can lead to naked singularities, a novel idea linking early universe collapse to observable cosmic features.

Findings

Primordial naked singularities can form during early universe collapse scenarios.

Such singularities could impact dark matter models.

The paper discusses observational implications of these singularities.

Abstract

Primordial black hole formation has been discussed widely, when density perturbations in the early universe cause matter to collapse gravitationally, giving rise to these ultra-compact objects. We propose and point out that such a gravitational collapse would also give rise to primordial naked singularities, that would play an important role in the observable features of present universe. We consider two types of collapse scenarios that give rise to event-like and object-like visible singularities within a cosmological background. We briefly discuss implications of primordial naked singularities, including those for dark matter, vis-a-vis primordial black holes.