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
142 papers · 1 filter
Freezing lakes as analogue models of CDM cosmology and beyond
Lorens F. Niehof, Ananya Venkatasubramanian, Federico Toschi +1
We extend previous conduction-based analogies between ice growth in a lake and cosmological expansion by incorporating buoyancy-driven heat transport. Reformulating the Stefan prob…
Dynamical hair growth in black hole binaries in Einstein-scalar-Gauss-Bonnet gravity
Lodovico Capuano, Llibert Aresté Saló, Daniela D. Doneva +2
Within the framework of scalar-tensor theories of gravity, certain models can evade classical black hole no-hair theorems. A well-known example is Einstein-scalar-Gauss-Bonnet grav…
Dark matter mounds from the collapse of supermassive stars: a general-relativistic analysis
Roberto Caiozzo, Gianfranco Bertone, Piero Ullio +3
Recent work has highlighted the importance of a fully relativistic treatment of the dephasing of gravitational waves induced by dark-matter overdensities in extreme mass-ratio insp…
When vacuum breaks: a self-consistency test for astrophysical environments in extreme mass ratio inspirals
Lorenzo Copparoni, Rohit S. Chandramouli, Enrico Barausse
Gravitational-wave signals are typically interpreted under the vacuum hypothesis, i.e. assuming negligible influence from the astrophysical environment. This assumption is expected…
Charting GLOBs in Asymptotically Safe Gravity
Francesco Del Porro, Jonas Pfeiffer, Alessia Platania +1
Computing the gravitational effective action provides a direct route to charting the landscape of admissible black hole spacetimes and their alternatives, which we will collectivel…
Shear viscosity to entropy density ratio: A powerful tool for gravity theories and strongly coupled fluids
Marilù Chiofalo, Dario Grasso, Stefano Liberati +1
In this perspective review, we present a concise yet multifaceted overview of the pivotal role played by the the shear viscosity to entropy density ratio across various physical co…
From de Sitter to anti-de Sitter singularity regularization: Theory and phenomenology
Julio Arrechea, Stefano Liberati, Hooman Neshat +1
Recent investigations of vacuum polarization in extremely compact stars suggest that, in such regimes, the effective matter content of spacetime may acquire a vacuum-energy equatio…
Cosmology with a Non-minimally Coupled Dark Matter Fluid I. Background Evolution
Samuele Silveravalle, Andrea Lapi, Francesco Benetti +1
We explore a cosmological model in which dark matter is non-minimally coupled to gravity at the fluid level. While typically subdominant compared to Standard Model forces, such cou…
Muffled Murmurs: Environmental effects in the LISA stochastic signal from stellar-mass black hole binaries
Ran Chen, Rohit S. Chandramouli, Federico Pozzoli +2
The population of unresolved stellar-mass black hole binaries (sBBHs) is expected to produce a stochastic gravitational-wave background (SGWB) potentially detectable by the Laser I…
Systematic bias in LISA ringdown analysis due to waveform inaccuracy
Lodovico Capuano, Massimo Vaglio, Rohit S. Chandramouli +3
Inaccurate modeling of gravitational-wave signals can introduce systematic biases in the inferred source parameters. As detector sensitivities improve and signals become louder, mi…
Probing supermassive black hole scalarization with Pulsar Timing Arrays
Clemente Smarra, Lodovico Capuano, Adrien Kuntz
Scalar-tensor theories with a scalar field coupled to the Gauss-Bonnet invariant can evade no-hair theorems and allow for non-trivial scalar profiles around black holes. This coupl…
Universal Horizons without Hypersurface Orthogonality
Francesco Del Porro, Stefano Liberati, Jacopo Mazza
A key consequence of Lorentz-violating gravity is the emergence of modified dispersion relations implying the absence of a universal maximum propagation speed. This challenges the…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
The implications of stochastic gas torques for asymmetric binaries in the LISA band
Lorenzo Copparoni, Lorenzo Speri, Laura Sberna +2
Gravitational waves from asymmetric mass-ratio black-hole binaries carry unique information about their astrophysical environment. For instance, the Laser Interferometer Space Ante…
Gravity: Background Dependence and Propagating Degrees of Freedom
Valentina Danieli, Antonio De Felice
The standard cosmological model, rooted in General Relativity (GR), has achieved remarkable success, yet it still faces unresolved issues like the nature of dark matter, dark energ…
Looking To The Horizon: Probing Evolution in the Black Hole Spectrum With Gravitational Wave Catalogs
Jam Sadiq, Thomas Dent, Ana Lorenzo-Medina
The population of black holes observed via gravitational waves currently covers the local universe up to a redshift , for the most massive merging binaries, or $z\less…
Violations of the null convergence condition in kinematical transitions between singular and regular black holes, horizonless compact objects, and bounces
Johanna Borissova, Stefano Liberati, Matt Visser
How do regular black holes evade the Penrose singularity theorem? Various models of stationary regular black holes globally satisfy the null convergence condition (NCC). At first g…
A Relativistic Tensorial Model for Fractional Interaction between Dark Matter and Gravity
Francesco Benetti, Andrea Lapi, Samuele Silveravalle +5
In a series of recent papers it was shown that several aspects of Dark Matter (DM) phenomenology, such as the velocity profiles of individual dwarfs and spiral galaxies, the scalin…
Ultra-compact Objects of Non-minimally Coupled Dark Matter
Francesco Benetti, Andrea Lapi, Samuele Silveravalle +1
In the framework of a collisionless dark matter fluid which is non-minimally coupled to gravity, we investigate the existence and properties of static, spherically symmetric soluti…
Beyond Buchdahl's limit: bilayered stars and thin-shell configurations
Julio Arrechea, Carlos Barceló, Gerardo García-Moreno +1
One of the theoretical motivations behind the belief that black holes as described by general relativity exist in nature is that it is hard to find matter configurations that mimic…
Scalar emission from neutron star-black hole binaries in scalar-tensor theories with kinetic screening
Ramiro Cayuso, Adrien Kuntz, Miguel Bezares +1
We explore scalar radiation from neutron star-black hole binaries in scalar-tensor theories with kinetic screening (-essence). Using 3+1 numerical relativity simulations in the…
Reconstructing the LISA massive black hole binary population via iterative kernel density estimation
Jam Sadiq, Kallol Dey, Thomas Dent +1
Reconstructing the properties of the astrophysical population of binary compact objects in the universe is a key science goal of gravitational wave detectors. This goal is hindered…
Gravitational Waves and Black Hole perturbations in Acoustic Analogues
Chiara Coviello, Maria Luisa Chiofalo, Dario Grasso +3
Phonons in Bose-Einstein condensates propagate as massless scalar particles on top of an emergent acoustic metric. This hydrodynamics/gravity analogy can be exploited to realize ac…
Deep Learning solutions to singular ordinary differential equations: from special functions to spherical accretion
R. Cayuso, M. Herrero-Valea, E. Barausse
Singular regular points often arise in differential equations describing physical phenomena such as fluid dynamics, electromagnetism, and gravitation. Traditional numerical techniq…