3 papers
gr-qc2026
Discrete symmetries of modified Teukolsky equations
Ciro De Simone
The Teukolsky equation possesses discrete symmetries that constrain the properties of black hole perturbations and their quasinormal mode spectrum. In this study, we explore how a…
gr-qc2026
Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr
Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +2
The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study…
gr-qc2025
Toward a unified view of agnostic parametrizations for deformed black holes
Manuel Del Piano, Ciro De Simone, Mattia Damia Paciarini +4
A variety of robust and effective descriptions have been devised to extract model-independent information about the fundamental properties of black holes from observational data wh…