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
30 papers · 2 filters
The landscape of massive black-hole spectroscopy with LISA and Einstein Telescope
Swetha Bhagwat, Costantino Pacilio, Enrico Barausse +1
Measuring the quasi-normal mode~(QNM) spectrum emitted by a perturbed black-hole~(BH) --~also known as BH spectroscopy~-- provides an excellent opportunity to test the predictions…
UV completions, fixing the equations and nonlinearities in -essence
Guillermo Lara, Miguel Bezares, Enrico Barausse
Scalar-tensor theories with first-derivative self interactions, known as -essence, may provide interesting phenomenology on cosmological scales. On smaller scales, however, init…
Geodesically complete black holes in Lorentz-violating gravity
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati +1
We present a systematic study of the geometric structure of non-singular spacetimes describing black holes in Lorentz-violating gravity. We start with a review of the definition of…
Soliton boson stars, Q-balls and the causal Buchdahl bound
Mateja Bošković, Enrico Barausse
Self-gravitating non-topological solitons whose potential admits multiple vacua are promising candidates for exotic compact objects. Such objects can arise in several extensions of…
Fast Rotating Neutron Stars: Oscillations and Instabilities
Christian J. Krüger, Kostas D. Kokkotas, Praveen Manoharan +1
In this review article, we present the main results from our most recent research concerning the oscillations of fast rotating neutron stars. We derive a set of time evolution equa…
Separating Astrophysics and Geometry in Black Hole Images
Guillermo Lara, Sebastian H. Völkel, Enrico Barausse
The observation of the shadow of the supermassive black hole M87 by the Event Horizon Telescope (EHT) is sensitive to the spacetime geometry near the circular photon orbit an…
Measuring the Hubble constant with black sirens
Hebertt Leandro, Valerio Marra, Riccardo Sturani
We investigate a recently proposed method for measuring the Hubble constant from gravitational wave detections of binary black hole coalescences without electromagnetic counterpart…
Dynamical Chameleon Neutron Stars: stability, radial oscillations and scalar radiation in spherical symmetry
Alexandru Dima, Miguel Bezares, Enrico Barausse
Scalar-tensor theories whose phenomenology differs significantly from general relativity on large (e.g. cosmological) scales do not typically pass local experimental tests (e.g. in…
No evidence of kinetic screening in simulations of merging binary neutron stars beyond general relativity
Miguel Bezares, Ricard Aguilera-Miret, Lotte ter Haar +3
We have conducted fully relativistic simulations in a class of scalar-tensor theories with derivative self-interactions and screening of local scales. By using high-resolution shoc…
Raychaudhuri equations and gravitational collapse in Einstein-Cartan theory
Sudipta Hensh, Stefano Liberati
The Raychaudhuri equations for the expansion, shear and vorticity are generalized in a spacetime with torsion for timelike as well as null congruences. These equations are purely g…
Hearts of Darkness: the inside out probing of black holes
Raúl Carballo-Rubio, Francesco Di Filippo, Stefano Liberati
Classical black holes shield us from the singularities that inevitably appear in general relativity. Being singularity regularization one of the main landmarks for a successful the…
Discriminating between different scenarios for the formation and evolution of massive black holes with LISA
Alexandre Toubiana, Kaze W. K. Wong, Stanislav Babak +5
Electromagnetic observations have provided strong evidence for the existence of massive black holes in the center of galaxies, but their origin is still poorly known. Different sce…
Detecting fundamental fields with LISA observations of gravitational waves from extreme mass-ratio inspirals
Andrea Maselli, Nicola Franchini, Leonardo Gualtieri +3
The Laser Interferometer Space Antenna, LISA, will detect gravitational wave signals from Extreme Mass Ratio Inspirals, where a stellar mass compact object orbits a supermassive bl…
Divergences in gravitational-wave emission and absorption from extreme mass ratio binaries
Enrico Barausse, Emanuele Berti, Vitor Cardoso +2
A powerful technique to calculate gravitational radiation from binary systems involves a perturbative expansion: if the masses of the two bodies are very different, the "small" bod…
The shape of Scalar Gauss-Bonnet Gravity
Mario Herrero-Valea
We study the consistency of Scalar Gauss-Bonnet Gravity, a generalization of General Relativity where black holes can develop non-trivial hair by the action of a coupling $F(Φ){\ca…
Exploring black holes as particle accelerators: hoop-radius, target particles and escaping conditions
Stefano Liberati, Christian Pfeifer, José Javier Relancio
The possibility that rotating black holes could be natural particle accelerators has been subject of intense debate. While it appears that for extremal Kerr black holes arbitrarily…
Kinetic screening in nonlinear stellar oscillations and gravitational collapse
Miguel Bezares, Lotte ter Haar, Marco Crisostomi +2
We consider k-essence, a scalar-tensor theory with first-order derivative self-interactions that can screen local scales from scalar fifth forces, while allowing for sizeable devia…
Effect of data gaps on the detectability and parameter estimation of massive black hole binaries with LISA
Kallol Dey, Nikolaos Karnesis, Alexandre Toubiana +4
Massive black hole binaries are expected to provide the strongest gravitational wave signals for the Laser Interferometer Space Antenna (LISA), a space mission targeting mH…
Charged black-bounce spacetimes
Edgardo Franzin, Stefano Liberati, Jacopo Mazza +2
Given the recent development of rotating black-bounce-Kerr spacetimes, for both theoretical and observational purposes it becomes interesting to see whether it might be possible to…
New binary pulsar constraints on Einstein-æther theory after GW170817
Toral Gupta, Mario Herrero-Valea, Diego Blas +4
The timing of millisecond pulsars has long been used as an exquisitely precise tool for testing the building blocks of general relativity, including the strong equivalence principl…
The relation between general relativity and a class of Hořava gravity theories
Nicola Franchini, Mario Herrero-Valea, Enrico Barausse
Violations of Lorentz (and specifically boost) invariance can make gravity renormalizable in the ultraviolet, as initially noted by Hořava, but are increasingly constrained in the…
Bayesian Inverse Problem of Rotating Neutron Stars
Sebastian H. Völkel, Christian J. Krüger, Kostas D. Kokkotas
In this work we provide a framework that connects the co-rotating and counter rotating -mode frequencies of rotating neutron stars with their stellar structure. The accurate com…
Intensity and anisotropies of the stochastic Gravitational Wave background from merging compact binaries in galaxies
Giulia Capurri, Andrea Lapi, Carlo Baccigalupi +3
We investigate the isotropic and anisotropic components of the Stochastic Gravitational Wave Background (SGWB) originated from unresolved merging compact binaries in galaxies. We b…
Black Holes in Ultraviolet-Complete Horava Gravity
Guillermo Lara, Mario Herrero-Valea, Enrico Barausse +1
Horava gravity is a proposal for completing general relativity in the ultraviolet by interactions that violate Lorentz invariance at very high energies. We focus on (2+1)-dimension…