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Shaping black holes with free fields

Abstract : Starting from a metric Ansatz permitting a weak version of Birkhoff's theorem we find static black hole solutions including matter in the form of free scalar and p-form fields, with and without a cosmological constant \Lambda. Single p-form matter fields permit multiple possibilities, including dyonic solutions, self-dual instantons and metrics with Einstein-Kaelher horizons. The inclusion of multiple p-forms on the other hand, arranged in a homogeneous fashion with respect to the horizon geometry, permits the construction of higher dimensional dyonic p-form black holes and four dimensional axionic black holes with flat horizons, when \Lambda<0. It is found that axionic fields regularize black hole solutions in the sense, for example, of permitting regular -- rather than singular -- small mass Reissner-Nordstrom type black holes. Their cosmic string and Vaidya versions are also obtained.
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Submitted on : Friday, March 2, 2012 - 5:30:05 PM
Last modification on : Thursday, March 5, 2020 - 6:27:35 PM

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  • HAL Id : hal-00676047, version 1
  • ARXIV : 1202.4458

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Yannis Bardoux, Marco M. Caldarelli, Christos Charmousis. Shaping black holes with free fields. Journal of High Energy Physics, Springer, 2012, 1205 (054), pp.38. ⟨hal-00676047⟩

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