158 citations · 844 across the 17 of their papers we have counts for
17 papers
Waveforms in massive gravity and neutralization of giant black hole ringings
Yves Décanini, Antoine Folacci, Mohamed Ould El Hadj
A distorted black hole radiates gravitational waves in order to settle down in a smoother geometry. During that relaxation phase, a characteristic damped ringing is generated. It c…
Resonance and absorption spectra of the Schwarzschild black hole for massive scalar perturbations: a complex angular momentum analysis
Yves Décanini, Antoine Folacci, Bernard Raffaelli
We reexamine some aspects of scattering by a Schwarzschild black hole in the framework of complex angular momentum techniques. More precisely, we consider, for massive scalar pertu…
Fine structure of high-energy absorption cross sections for black holes
Yves Décanini, Antoine Folacci, Bernard Raffaelli
The high-energy absorption cross section of the Schwarzschild black hole is well approximated, in the eikonal regime, by the sum of two terms: the geometrical cross section of the…
Universality of high-energy absorption cross sections for black holes
Yves Décanini, Gilles Esposito-Farèse, Antoine Folacci
We consider the absorption problem for a massless scalar field propagating in static and spherically symmetric black holes of arbitrary dimension endowed with a photon sphere. For…
Unstable circular null geodesics of static spherically symmetric black holes, Regge poles and quasinormal frequencies
Yves Décanini, Antoine Folacci, Bernard Raffaelli
We consider a wide class of static spherically symmetric black holes of arbitrary dimension with a photon sphere (a hypersurface on which a massless particle can orbit the black ho…
Regge poles of the Schwarzschild black hole: a WKB approach
Yves Décanini, Antoine Folacci
We provide simple and accurate analytical expressions for the Regge poles of the Schwarzschild black hole. This is achieved by using third-order WKB approximations to solve the rad…