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- Centre National de la Recherche ScientifiqueFR377 papers
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4 papers · 2 filters
Black hole stability under odd-parity perturbations in Horndeski gravity
Apratim Ganguly, Radouane Gannouji, Manuel Gonzalez-Espinoza +1
We study the stability under linear odd-parity perturbations of static spherically symmetric black holes in Horndeski gravity. We derive the master equation for these perturbations…
When black holes collide: Probing the interior composition by the spectrum of ringdown modes and emitted gravitational waves
Ram Brustein, A. J. M. Medved, K. Yagi
The merger of colliding black holes (BHs) should lead to the production of ringdown or quasinormal modes (QNMs), which may very well be sensitive to the state of the interior. We p…
Global structure of static spherically symmetric solutions surrounded by quintessence
Miguel Cruz, Apratim Ganguly, Radouane Gannouji +2
We investigate all static spherically symmetric solutions in the context of general relativity surrounded by a minimally-coupled quintessence field, using dynamical system analysis…
Discovering the interior of black holes
Ram Brustein, A. J. M. Medved, K. Yagi
The detection of gravitational waves (GWs) from black hole (BH) mergers provides an inroad toward probing the interior of astrophysical BHs. The general-relativistic description of…