Corpus ID: 231839558

Superradiance in deformed Kerr black holes

  title={Superradiance in deformed Kerr black holes},
  author={Mauro Oi and Edgardo Franzin and Stefano Liberati},
Edgardo Franzin,1, 2, 3, 4 Stefano Liberati,2, 3, 4 and Mauro Oi5, 6 1Department of Astrophysics, Cosmology and Fundamental Interactions (COSMO), Centro Brasileiro de Pesquisas Fı́sicas (CBPF), rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro – RJ, 22290-180 Brazil 2SISSA, International School for Advanced Studies, via Bonomea 265, 34136 Trieste, Italy 3IFPU, Institute for Fundamental Physics of the Universe, via Beirut 2, 34014 Trieste, Italy 4INFN, Sezione di Trieste, via Valerio 2, 34127… Expand

Figures from this paper


Schwarzschild-like black holes: Light-like trajectories and massless scalar absorption
Black holes are among the most intriguing objects in nature. They are believed to be fully described by General Relativity (GR), and the astrophysical black holes are expected to belong to the KerrExpand
Asymptotically flat, parametrized black hole metric preserving Kerr symmetries
Recently the Event Horizon Telescope Collaboration, with very-long baseline interferometric observations, resolved structure at the scale of ∼5 Schwarzschild radii about the center of M87*, theExpand
Testing the Kerr metric with the iron line and the KRZ parametrization
The spacetime geometry around astrophysical black holes is supposed to be well approximated by the Kerr metric, but deviations from the Kerr solution are predicted in a number of scenarios involvingExpand
On generic parametrizations of spinning black-hole geometries
The construction of a generic parametrization of spinning geometries which can be matched continuously to the Kerr metric is an important open problem in General Relativity. Its resolution is moreExpand
Testing General Relativity with X-ray reflection spectroscopy: The Konoplya-Rezzolla-Zhidenko parametrization
X-ray reflection spectroscopy is a promising technique for testing general relativity in the strong field regime, as it can be used to test the Kerr black hole hypothesis. In this context, theExpand
Superradiant instabilities in astrophysical systems
Light bosonic degrees of freedom have become a serious candidate for dark matter, which seems to pervade our entire Universe. The evolution of these fields around curved spacetimes is poorlyExpand
Black holes as particle detectors: evolution of superradiant instabilities
Superradiant instabilities of spinning black holes can be used to impose strong constraints on ultralight bosons, thus turning black holes into effective particle detectors. However, very little isExpand
Stochastic and Resolvable Gravitational Waves from Ultralight Bosons.
Numerical solutions of the perturbed field equations and astrophysical models of massive and stellar-mass black hole populations are used to compute, for the first time, the stochastic gravitational-wave background from these sources. Expand
Strong gravitational lensing by a Konoplya-Zhidenko rotating non-Kerr compact object
Konoplya and Zhidenko have proposed recently a rotating non-Kerr black hole metric beyond General Relativity and make an estimate for the possible deviations from the Kerr solution with the data ofExpand
Axisymmetric black holes allowing for separation of variables in the Klein-Gordon and Hamilton-Jacobi equations
We determine the class of axisymmetric and asymptotically flat black-hole spacetimes for which the test Klein-Gordon and Hamilton-Jacobi equations allow for the separation of variables. The knownExpand