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arXiv · 0811.4570

Gravitational collapse of homogeneous perfect fluid in HOG theories

Roberto Giambò
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Abstract

This paper investigates the evolution of collapsing FRW models with a scalar field having the potential which arises in the conformal frame of high order gravity theories, coupled to matter described by a perfect fluid with energy density $ρ$ and pressure $p$, obeying a barotropic equation of state. The solutions are shown to evolve generically to a singular state in a finite time and they are used as sources for radiating objects undergoing complete gravitational collapse. Although these singularities may be naked in some special case, it is shown that generically a black hole forms.

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Roberto Giambò. 2008-11-27. Gravitational collapse of homogeneous perfect fluid in HOG theories. https://doi.org/10.1063/1.3032755

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