Naked Singularities in Spherically Symmetric, Self-Similar Spacetimes

TL;DR

This paper demonstrates that known naked singularities in spherically symmetric self-similar spacetimes are due to initial matter distribution singularities and are not relevant for astrophysical observations.

Contribution

It clarifies that such naked singularities are artifacts of coordinate transformations and do not have physical implications.

Findings

Naked singularities arise from singular initial matter distributions.

Coordinate transformations can produce separable forms of these spacetimes.

Such singularities are not of astrophysical consequence.

Abstract

We show that all known naked singularities in spherically symmetric self-similar spacetimes arise as a result of singular initial matter distribution. This is a result of the peculiarity of the coordinate transformation that takes these spacetimes into a separable form. Therefore, these examples of naked singularities are of no apparent consequence to astrophysical observations or theories.