742 citations · 1.8k across the 17 of their papers we have counts for
17 papers
Perturbations of Plane Waves and Quadratic Quasinormal Modes on the Lightring
Kwinten Fransen, David Pereñiguez, Jaime Redondo-Yuste
We study second order gravitational perturbations on plane wave spacetimes from both the metric and curvature perturbation points of view. For the former, we explicitly use the iso…
Black hole spectroscopy: from theory to experiment
Emanuele Berti, Vitor Cardoso, Gregorio Carullo +65
The "ringdown" radiation emitted by oscillating black holes has great scientific potential. By carefully predicting the frequencies and amplitudes of black hole quasinormal modes a…
Gravitational wave signatures of departures from classical black hole scattering
Kwinten Fransen, Steven B. Giddings
We initiate a general investigation into gravitational wave signatures of modifications to scattering of gravitational radiation from black holes. Such modifications may be present…
Quasinormal modes of rotating black holes in higher-derivative gravity
Pablo A. Cano, Kwinten Fransen, Thomas Hertog +1
We compute the spectrum of linearized gravitational excitations of black holes with substantial angular momentum in the presence of higher-derivative corrections to general relativ…
The universal Teukolsky equations and black hole perturbations in higher-derivative gravity
Pablo A. Cano, Kwinten Fransen, Thomas Hertog +1
We reduce the study of perturbations of rotating black holes in higher-derivative extensions of general relativity to a system of decoupled radial equations that stem from a set of…
Quasinormal Modes from Penrose Limits
Kwinten Fransen
We use Penrose limits to approximate quasinormal modes with large real frequencies. The Penrose limit associates a plane wave to a region of spacetime near a null geodesic. This pl…