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Bonn 2001 – wissenschaftliches Programm

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GR: Gravitation und Relativitätstheorie

GR 8: Schwarze Löcher

GR 8.1: Fachvortrag

Mittwoch, 28. März 2001, 14:15–14:30, VII

Rotating Hairy Black Holes — •Jutta Kunz1 and Burkhard Kleihaus21Fachbereich Physik, Universität Oldenburg, Postfach 2503, D-26111 Oldenburg, Germany — 2Department on Mathematical Physics, University College, Dublin, Dublin 4, Ireland

We construct stationary black holes in SU(2) Einstein-Yang-Mills theory, which carry angular momentum and electric charge [1]. Possessing non-trivial non-abelian magnetic fields outside their regular event horizon, they represent non-perturbative rotating hairy black holes. Starting from the static spherically symmetric hairy black hole solutions, we obtain a lower branch of rotating axially symmetric solutions, by increasing the rotational velocity of the horizon, ωH, from zero, keeping the horizon radius xH fixed. When a maximal value of ωH is reached an upper branch forms, bending backwards towards ωH=0. Along both branches mass, electric charge and angular momentum continuously increase. But whereas mass and angular momentum per unit mass of the non-abelian solutions increase strongly along the upper branch, their electric charge remains small.

[1] B. Kleihaus and J. Kunz, gr-qc/0012081

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