Scalarization is a mechanism that endows strongly self-gravitating bodies, such as neutron stars and black holes, with a scalar-field configuration. It resembles a phase transition in that …
The dawn of the twenty-first century came with very positive prospects for gravity, cosmology, and astrophysics. Technological progress made it possible for cosmology to enter to its …
It was recently shown that a scalar field suitably coupled to the Gauss-Bonnet invariant G can undergo a spin-induced linear tachyonic instability near a Kerr black hole. This …
We construct black hole solutions with spin-induced scalarization in a class of models where a scalar field is quadratically coupled to the topological Gauss-Bonnet term. Starting from the …
We study the dynamics of black holes in scalar Einstein–Gauss-Bonnet theories that exhibit spontaneous black hole scalarization using recently introduced methods for solving the full …
We construct asymptotically flat, spinning, regular on and outside an event horizon, scalarized black holes (SBHs) in extended scalar-tensor–Gauss-Bonnet models. They …
We study scalar fields in a black hole background and show that, when the scalar is suitably coupled to curvature, rapid rotation can induce a tachyonic instability. This instability, which …
K Clough, T Helfer, H Witek, E Berti - Physical review letters, 2022 - APS
Massive vector fields feature in several areas of particle physics, eg, as carriers of weak interactions, dark matter candidates, or an effective description of photons in a plasma. Here …
Z Lyu, N Jiang, K Yagi - Physical Review D, 2022 - APS
Recent gravitational wave observations allow us to probe gravity in the strong and dynamical field regime. In this paper, we focus on testing Einstein-dilation Gauss-Bonnet …