Scalar hairy black holes and solitons in a gravitating Goldstone model

  title={Scalar hairy black holes and solitons in a gravitating Goldstone model},
  author={E. Radu and Y. Shnir and D. H. Tchrakian},
  journal={Physics Letters B},
Abstract We study black hole solutions of Einstein gravity coupled to a specific global symmetry breaking Goldstone model described by an O ( 3 ) isovector scalar field in four spacetime dimensions. Our configurations are static and spherically symmetric, approaching at infinity a Minkowski spacetime background. A set of globally regular, particle-like solutions are found in the limit of vanishing event horizon radius. These configurations can be viewed as ‘regularised’ global monopoles, since… Expand
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