256 citations · 1.3k across the 40 of their papers we have counts for
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End state of the experimental black-hole bomb
Patrik Švančara, Leonardo Solidoro, Pietro Smaniotto +10
Rotating black holes can amplify incident waves through superradiant scattering. When these waves are confined, repeated amplification gives rise to the black-hole bomb instability…
Tachyonic modes as a resonant system in weakly curved stellar spacetimes
Bruno S. Felipe, Maurício Richartz
A real scalar field nonminimally coupled to the curvature of an astrophysical object can develop an effective potential that supports, alongside stable oscillatory solutions, a set…
Exceptional lines in the Kerr-Newman black hole spectrum
João Paulo Cavalcante, Maurício Richartz
We investigate massive scalar perturbations of Kerr-Newman black holes, focusing on the quasinormal mode spectrum in the near-extremal regime. We identify a sequ…
Superradiant scattering by rotating black-bounce black holes
Pedro Henrique Croti Siqueira, Maurício Richartz
We investigate superradiant scattering off a rotating regular black hole described by a black-bounce metric which generalizes the Kerr spacetime of mass and specific angular mo…