A Note on trapped Surfaces in the Vaidya Solution
General Relativity and Quantum Cosmology
2009-02-18 v2
Abstract
The Vaidya solution describes the gravitational collapse of a finite shell of incoherent radiation falling into flat spacetime and giving rise to a Schwarzschild black hole. There has been a question whether closed trapped surfaces can extend into the flat region (whereas closed outer trapped surfaces certainly can). For the special case of self-similar collapse we show that the answer is yes, if and only if the mass function rises fast enough.
Keywords
Cite
@article{arxiv.0809.2213,
title = {A Note on trapped Surfaces in the Vaidya Solution},
author = {Ingemar Bengtsson and José M. M. Senovilla},
journal= {arXiv preprint arXiv:0809.2213},
year = {2009}
}
Comments
14 pages, 4 figures; minor polish added to version 2