New class of naked singularities and their observational signatures

TL;DR

This paper introduces a new class of static naked singularities formed through gravitational collapse, characterized by unique observational signatures such as lensing and accretion disk properties, differing from black hole scenarios.

Contribution

It presents a novel two-parameter family of naked singularity solutions derived from gravitational collapse with specific junction conditions and analyzes their observational features.

Findings

Distinct lensing signatures compared to black holes

Unique accretion disk characteristics

Existence of a two-fluid model including dust

Abstract

By imposing suitable junction conditions on a space-like hyper-surface, we obtain a two-parameter family of possible static configurations from gravitational collapse. These exemplify a new class of naked singularities. We show that these admit a consistent description via a two-fluid model, one of which might be dust. We then study lensing and accretion disk properties of our solution and point out possible differences with black hole scenarios. The distinctive features of our solution, compared to the existing naked singularity solutions in the literature are discussed.