New critical behavior in Einstein-Yang-Mills collapse

Abstract

We extend the investigation of the gravitational collapse of a spherically symmetric Yang-Mills field in Einstein gravity and show that, within the black hole regime, a new kind of critical behavior arises which separates black holes formed via type I collapse from black holes formed through type II collapse. Further, we provide evidence that these new attracting critical solutions are in fact the previously discovered colored black holes with a single unstable mode. © 1999 The American Physical Society.