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gr-qc2016★ 78 cited
Dynamical scalar hair formation around a Schwarzschild black hole
Robert Benkel, Thomas P. Sotiriou, Helvi Witek
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…
gr-qc2016★ 108 cited
Black hole hair formation in shift-symmetric generalised scalar-tensor gravity
Robert Benkel, Thomas P. Sotiriou, Helvi Witek
A linear coupling between a scalar field and the Gauss-Bonnet invariant is the only known interaction term between a scalar and the metric that: respects shift symmetry; does not l…