Speaker
Roy P Kerr
(Canterbury University)
Description
There are three regions in the Kerr spinning black hole metric, separated by the two event horizons. The outer two are probably good approximations to the corresponding regions as a real black hole forms, but the inner Kerr is not. It has to have something to generate the gravitational field outside, and that can only be a singularity since it is by definition matter free. However, even after 58 years there is no proof that singularities form inside real collapsing bodies. I believe this is because they are singularity free! It is also shown how an approximation method can be started with outgoing Kerr-Schild coordinates, leading to an approximation method similar to either the slow or fast approximation.
Primary author
Roy P Kerr
(Canterbury University)
