Abstract
We investigate static axially symmetric monopole and black hole solutions with a magnetic charge in Einstein-Yang-Mills-Higgs theory. For a vanishing and small Higgs self-coupling, multimonopole solutions are gravitationally bound. Their mass per unit charge is lower than the mass of the monopole. For a large Higgs self-coupling only a repulsive phase exists. The static axially symmetric hairy black hole solutions possess a deformed horizon with constant surface gravity. We consider their properties in the isolated horizon framework, interpreting them as bound states of monopoles and black holes. Representing counterexamples to the “no-hair” conjecture, these black holes are neither uniquely characterized by their horizon area and horizon charge.
- Received 20 August 2001
DOI:https://doi.org/10.1103/PhysRevD.65.024027
©2001 American Physical Society