Non-Universality of Critical Behaviour in Spherically Symmetric Gravitational Collapse
Dieter Maison
Abstract
The aim of the present letter is to explain the `critical behaviour' observed in numerical studies of spherically symmetric gravitational collaps of a perfect fluid. A simple expression results for the critical index γ of the black hole mass considered as an order parameter. γ turns out to vary strongly with the parameter k of the assumed equation of state p=kρ.
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