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arXiv · 0809.2213

A Note on trapped Surfaces in the Vaidya Solution

Ingemar Bengtsson·José M. M. Senovilla
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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.

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Ingemar Bengtsson, José M. M. Senovilla. 2008-10-06. A Note on trapped Surfaces in the Vaidya Solution. https://doi.org/10.1103/physrevd.79.024027

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