Black holes and scalar fields in modified gravity: gravitational waves and spontaneous scalarizations

by Caio Macedo (Para' University)

Thursday 3 Oct 2019, 14:00 → 15:30 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

It has recently been shown that nontrivial couplings between a scalar field and the Gauss-Bonnet invariant can give rise to black hole spontaneous scalarization. Theories that exhibit this phenomenon are among the leading candidates for testing gravity with upcoming black hole observations. These theories admit both the classic black hole solutions predicted by general relativity as well as novel hairy black hole solutions. We present the general assumptions for the generation of black hole scalarization within a class of theories supplemented with a scalar field coupled with the Gauss-Bonnet term.