期刊
PHYSICAL REVIEW D
卷 65, 期 2, 页码 -出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevD.65.024027
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We investigate static axially symmetric monopole and black hole solutions with a magnetic charge n greater than or equal to 1 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 n = 1 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.
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