A unified hoop conjecture for black holes and horizonless compact stars
arXiv:2101.07353
Abstract
We propose a unified version of hoop conjecture valid for various black holes and horizonless compact stars. This conjecture is expressed by the mass to circumference ratio , where C is the circumference of the smallest ring that can engulf the object in all azimuthal directions and is the mass within the engulfing sphere.
5 pages