2 papers
gr-qc2025
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…
gr-qc2025
Black hole spectroscopy: from theory to experiment
Emanuele Berti, Vitor Cardoso, Gregorio Carullo +70
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…