From the 1 of 7 linked papers with an AI index.
7 papers
Constraining deviations from the Teukolsky equation with GW250114
Sebastian H. Völkel, Nicola Franchini
The paper uses the GW250114 gravitational‑wave event to place the first theory‑agnostic limits on possible deviations from the Teukolsky equation, linking changes in the effective…
Quasinormal modes of rotating black holes beyond general relativity in the WKB approximation
Ruijing Tang, Nicola Franchini, Sebastian H. Völkel +1
Exploring gravitational theories beyond general relativity (GR) with black hole (BH) spectroscopy requires accurate and flexible methods for computing their quasinormal mode (QNM)…
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…
Parametrized quasi-normal mode framework for modified Teukolsky equations
Pablo A. Cano, Lodovico Capuano, Nicola Franchini +2
Modifications to general relativity lead to effects in the spectrum of quasi-normal modes of black holes. In this paper, we develop a parametrized formalism to describe deviations…
Hyperbolicity in scalar-Gauss-Bonnet gravity: a gauge invariant study for spherical evolution
Farid Thaalba, Nicola Franchini, Miguel Bezares +1
We study spherical evolution in scalar-Gauss-Bonnet gravity with additional Ricci coupling and use the gauge-invariant approach of Ref.~\cite{Reall:2021voz} to track well-posedness…
The dynamics of spherically symmetric black holes in scalar-Gauss-Bonnet gravity with a Ricci coupling
Farid Thaalba, Nicola Franchini, Miguel Bezares +1
We study the dynamics of spherically symmetric black holes in scalar Gauss-Bonnet gravity with an additional coupling between the scalar field and the Ricci scalar using non-linear…