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Perturbations of slowly rotating black holes: massive vector fields in the Kerr metric
Paolo Pani, Vitor Cardoso, Leonardo Gualtieri +2
We discuss a general method to study linear perturbations of slowly rotating black holes which is valid for any perturbation field, and particularly advantageous when the field equ…
Black-Hole Bombs and Photon-Mass Bounds
Paolo Pani, Vitor Cardoso, Leonardo Gualtieri +2
Generic extensions of the standard model predict the existence of ultralight bosonic degrees of freedom. Several ongoing experiments are aimed at detecting these particles or const…
Surface singularities in Eddington-inspired Born-Infeld gravity
Paolo Pani, Thomas P. Sotiriou
Eddington-inspired Born-Infeld gravity was recently proposed as an alternative to general relativity that offers a resolution of spacetime singularities. The theory differs from Ei…
Tidal effects around higher-dimensional black holes
Richard Brito, Vitor Cardoso, Paolo Pani
In four-dimensional spacetime, moons around black holes generate low-amplitude tides, and the energy extracted from the hole's rotation is always smaller than the gravitational rad…
Tidal acceleration of black holes and superradiance
Vitor Cardoso, Paolo Pani
Tidal effects have long ago locked the Moon in synchronous rotation with the Earth and progressively increase the Earth-Moon distance. This "tidal acceleration" hinges on dissipati…
Eddington-inspired Born-Infeld gravity. Phenomenology of non-linear gravity-matter coupling
Paolo Pani, Terence Delsate, Vitor Cardoso
Viable corrections to the matter sector of Poisson's equation may result in qualitatively different astrophysical phenomenology, for example the gravitational collapse and the prop…