1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Trieste Astronomical ObservatoryIT826 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT688 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT606 papers
- University of TriesteIT516 papers
- Centre National de la Recherche ScientifiqueFR476 papers
- Ludwig-Maximilians-Universität MünchenDE400 papers
- Instituto de Astrofísica de CanariasES360 papers
- Max Planck Institute for Extraterrestrial PhysicsDE350 papers
- University College LondonGB348 papers
- Institute for High Energy PhysicsES346 papers
- Universidad de La LagunaES335 papers
- Institut d'Astrophysique de ParisFR332 papers
28 papers · 2 filters
Searching for anisotropic stochastic gravitational-wave backgrounds with constellations of space-based interferometers
Giulia Capurri, Andrea Lapi, Lumen Boco +1
Many recent works have shown that the angular resolution of ground-based detectors is too poor to characterize the anisotropies of the stochastic gravitational-wave background (SGW…
Measuring deviations from the Kerr geometry with black hole ringdown
Kallol Dey, Enrico Barausse, Soumen Basak
Black holes in General Relativity are famously characterized by two "hairs" only, the mass and the spin of the Kerr spacetime. Theories extending General Relativity, however, allow…
Comment on "Regular evaporating black holes with stable cores"
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +2
Regular black holes are generically unstable because of the classical phenomenon that goes by the name of "mass inflation" which destabilizes the inner horizon. In a recent article…
Painleve-Gullstrand coordinates versus Kerr spacetime geometry
Matt Visser, Stefano Liberati
We discuss the tension between the possible existence of Painleve-Gullstrand coordinate systems versus the explicit geometrical features of the Kerr spacetime; a subject of interes…
A parametrized quasi-normal mode framework for non-Schwarzschild metrics
Nicola Franchini, Sebastian H. Völkel
In this work we comment in more detail on what happens to the parametrized framework first presented by Cardoso et al. when there are departures from the Schwarzschild background m…
Quasi-Normal Modes from Bound States: The Numerical Approach
Sebastian H. Völkel
It is known that the spectrum of quasi-normal modes of potential barriers is related to the spectrum of bound states of the corresponding potential wells. This property has been wi…
Testing gravitational wave propagation with multiband detections
Tessa Baker, Enrico Barausse, Anson Chen +3
Effective field theories (EFT) of dark energy (DE) -- built to parameterise the properties of DE in an agnostic manner -- are severely constrained by measurements of the propagatio…
Constraining modifications of black hole perturbation potentials near the light ring with quasinormal modes
Sebastian H. Völkel, Nicola Franchini, Enrico Barausse +1
In modified theories of gravity, the potentials appearing in the Schrödinger-like equations that describe perturbations of non-rotating black holes are also modified. In this paper…
Tidal heating in a Riemann-Cartan spacetime
Sudipta Hensh, Stefano Liberati, Vincenzo Vitagliano
We consider possible perturbations of the black hole event horizon induced by matter with spin, extending the derivation of the Hawking-Hartle formula (tidal heating) in the presen…
Probing Accretion Physics with Gravitational Waves
Lorenzo Speri, Andrea Antonelli, Laura Sberna +4
Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) offer the opportunity to probe the environments of active galactic nuclei (AGN) through the torques that acc…
Gravitational Tunneling in Lorentz Violating Gravity
F. Del Porro, M. Herrero-Valea, S. Liberati +1
Black holes in Lorentz violating gravity, such as Einstein--Aether or Horava--Lifshitz Gravity, are drastically different from their general relativistic siblings. Although they al…
Robustness of kinetic screening against matter coupling
Guillermo Lara, Miguel Bezares, Marco Crisostomi +1
We investigate neutron star solutions in scalar-tensor theories of gravity with first-order derivative self-interactions in the action and in the matter coupling. We assess the rob…
The well-posedness of the Cauchy problem for self-interacting vector fields
Enrico Barausse, Miguel Bezares, Marco Crisostomi +1
We point out that the initial-value (Cauchy) problem for self-interacting vector fields presents the same well-posedness issues as for first-order derivative self-interacting scala…
Space-time thermodynamics in momentum dependent geometries
G. Chirco, S. Liberati, J. J. Relancio
A possible way to capture the effects of quantum gravity in spacetime at a mesoscopic scale, for relatively low energies, is through an energy dependent metric, such that particles…
Fixing the dynamical evolution in scalar-Gauss-Bonnet gravity
Nicola Franchini, Miguel Bezares, Enrico Barausse +1
One of the major obstacles to testing alternative theories of gravity with gravitational-wave data from merging binaries of compact objects is the formulation of their field equati…
Regular black holes without mass inflation instability
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +2
Generic models of regular black holes have separate outer and inner horizons, both with nonzero surface gravity. It has been shown that a nonzero inner horizon surface gravity resu…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
Echoes from backreacting exotic compact objects
Vania Vellucci, Edgardo Franzin, Stefano Liberati
The possible detection of echoes in late gravitational-wave signals is the most promising way to test horizonless alternatives to general relativistic black holes, and probe the ph…
Observing GW190521-like binary black holes and their environment with LISA
Laura Sberna, Stanislav Babak, Sylvain Marsat +8
Binaries of relatively massive black holes like GW190521 have been proposed to form in dense gas environments, such as the disks of Active Galactic Nuclei (AGNs), and they might be…
Exploring black hole mechanics in cotangent bundle geometries
J. J. Relancio, S. Liberati
The classical and continuum limit of a quantum gravitational setting could lead, at mesoscopic regimes, to a very different notion of geometry w.r.t. the pseudo-Riemannian one of s…
Constraining the Nuclear Equation of State from Rotating Neutron Stars
Sebastian H. Völkel, Christian J. Krüger
We demonstrate how observables of slowly rotating neutron stars can be used to constrain the nuclear equation of state. By building a Bayesian framework we demonstrate how combinin…
Extreme mass-ratio inspirals as probes of scalar fields: eccentric equatorial orbits around Kerr black holes
Susanna Barsanti, Nicola Franchini, Leonardo Gualtieri +2
We study binary systems in which a stellar mass compact object spirals into a massive black hole, known as extreme mass ratio inspirals, in scenarios with a new fundamental scalar…
Theory-agnostic Reconstruction of Potential and Couplings from Quasi-Normal Modes
Sebastian H. Völkel, Nicola Franchini, Enrico Barausse
In this work, we use a parametrized theory-agnostic approach that connects the observation of black hole quasi-normal modes with the underlying perturbation equations, with the goa…
On Black Hole Area Quantization and Echoes
Andrew Coates, Sebastian H. Völkel, Kostas D. Kokkotas
In this work we argue that black hole area quantization of Bekenstein and Mukhanov should not give rise to measurable effects in terms of so-called gravitational wave echoes during…