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A study of gravitational collapse with decaying of the vacuum energy

M. de Campos
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Abstract

We study the gravitational collapse of a dust dark matter star in a $Λ$-background. We consider two distinct cases: First we do not have a dark matter and dark energy coupling; second, we consider that $Λ$ decay in dark particles. The approach adopted assumes a modified matter expansion rate and we have formation of a black hole, since that, we have the formation of an apparent horizon. A brief comparison of the process of the matter condensation using the gravitational collapse approach and the linear scalar perturbation theory is considered.

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M. de Campos. 2006-11-07. A study of gravitational collapse with decaying of the vacuum energy. https://arxiv.org/abs/gr-qc/0607071

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