On trapped surface formation in gravitational collapse II

TL;DR

This paper explores conditions under which trapped surfaces form or are avoided during gravitational collapse, examining theoretical and astrophysical aspects to understand realistic scenarios.

Contribution

It analyzes various approaches to prevent trapped surface formation in gravitational collapse while satisfying energy conditions, and discusses astrophysical implications.

Findings

Negative pressures can avoid trapped surfaces under certain conditions

Astrophysical considerations may support or challenge these theoretical models

Further attempts to understand realistic gravitational collapse scenarios

Abstract

Further to our consideration on trapped surfaces in gravitational collapse, where pressures were allowed to be negative while satisfying weak energy condition to avoid trapped surface formation, we discuss here several other attempts of similar nature in this direction. Certain astrophysical aspects are pointed out towards examining the physical realization of such a possibility in realistic gravitational collapse.