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Dynamical scalar hair formation around a Schwarzschild black hole (1612.08184v2)
Published 24 Dec 2016 in gr-qc, astro-ph.HE, and hep-th
Abstract: Scalar fields coupled to the Gauss-Bonnet invariant evade the known no-hair theorems and have nontrivial configurations around black holes. We focus on a scalar field that couples linearly to the Gauss-Bonnet invariant and hence exhibits shift symmetry. We study its dynamical evolution and the formation of scalar hair in a Schwarzschild background. We show that the evolution eventually settles to the known static hairy solutions in the appropriate limit.
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