The Interior of a Black Hole

Abstract

The collapse of a realistic star and formation of a black hole are initially highly dynamical processes. However, the external gravitational field settles down very quickly to the unique stationary state — a Kerr-Newman black hole. Dynamical deviations from this state produce the emission of gravitational radiation. This radiation interacts with the spacetime curvature. While part of it escapes to infinity, another part is backscattered and absorbed by the resulting black hole. In the end all deviations from the Kerr-Newman field decay to zero.