activity
20242026
collaborators

11 papers

gr-qc2026

Dynamical Tidal Response of Neutron Stars: from Effective Field Theory to Gravitational Waveforms

Thomas Apostolidis, Valerio De Luca, Leonardo Gualtieri +3

We investigate the fully relativistic dynamical tidal response of neutron stars up to second order in the frequency. Combining the worldline effective field theory for extended gra…

gr-qc2026

Minimum mass, maximum charge and hyperbolicity in scalar Gauss-Bonnet gravity

Dario Rossi, Leonardo Gualtieri, Thomas P. Sotiriou

We study the loss of hyperbolicity of perturbation equations for black hole solutions of scalar Gauss-Bonnet gravity. We consider a class of coupling functions allowing for static…

gr-qc2026

Nonperturbative suppression of beyond-General-Relativity effects in quadratic gravity

Georgios Antoniou, Leonardo Gualtieri, Paolo Pani

Quadratic gravity is a well-motivated extension of general relativity~(GR) wherein the Einstein-Hilbert action is augmented by quadratic curvature terms. This theory is equivalent…

gr-qc2026

Adiabatic evolution of asymmetric binaries on generic orbits with new fundamental fields I: characterization of gravitational wave fluxes

Sara Gliorio, Matteo Della Rocca, Susanna Barsanti +3

We investigate the dynamics of asymmetric binaries in extensions of General Relativity featuring a massless scalar field non-minimally coupled to gravity, focusing on the interplay…

gr-qc2025

Quasinormal ringing of Kerr black holes. III. Excitation coefficients for equatorial inspirals from the innermost stable circular orbit

Matteo Della Rocca, Laura Pezzella, Emanuele Berti +2

The remnant of a black hole binary merger settles into a stationary configuration by "ringing down" through the emission of gravitational waves that consist of a superposition of d…

gr-qc2025

Screening of dipolar emission in two-scale Gauss-Bonnet gravity

Farid Thaalba, Leonardo Gualtieri, Thomas P. Sotiriou +1

We study black holes in shift-symmetric scalar Gauss-Bonnet gravity extended by a cubic Galileon interaction with a distinct energy scale. Introducing this hierarchy profoundly mod…