10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Institute for AstrophysicsIT642 papers
- Osservatorio Astronomico di PadovaIT505 papers
- Centre National de la Recherche ScientifiqueFR493 papers
- Instituto de Astrofísica de CanariasES338 papers
- University of PaduaIT326 papers
- Universidad de La LagunaES298 papers
- European Southern ObservatoryCL284 papers
- Astronomical Observatory of RomeIT283 papers
- University of GenevaCH273 papers
- Osservatorio Astrofisico di TorinoIT270 papers
- University of CataniaIT261 papers
- Astronomical Observatory of CapodimonteIT258 papers
31 papers · 1 filter
Fifth-Force Constraints from UV-Complete Scalar-Tensor Gravity
Alfio M. Bonanno, Emiliano M. Glaviano
We study an scalar multiplet nonminimally coupled to gravity and follow its renormalization-group (RG) flow in the vicinity of an interacting, nonperturbatively UV-complete…
GW240925 and GW250207: Astrophysical Calibration of Gravitational-wave Detectors
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1839
GW240925 and GW250207 are two loud gravitational-wave signals from binary black hole coalescences observed with network signal-to-noise ratios and , respectively…
Narrowband searches for continuous gravitational waves from known pulsars in the first two parts of the fourth LIGO--Virgo--KAGRA observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1853
Rotating non-axisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). Such CWs can, if detected, inform us about the internal structure and…
The Sequential Monte Carlo goes NUTS: Boosting Gravitational-Wave Inference
Gabriele Demasi, Giulia Capurri, Massimo Lenti +9
Sequential Monte Carlo (SMC) methods have recently been applied to gravitational-wave inference as a powerful alternative to standard sampling techniques, such as Nested Sampling.…
Black Holes in Asymptotic Safety: A Review of Solutions and Phenomenology
Andrea Spina
Asymptotic Safety offers a conservative and predictive framework for quantum gravity, based on the existence of a renormalization group fixed point that ensures ultraviolet complet…
Regular Black Hole Cores via Gravitational Evanescence of Collapsing Matter
Antonio Panassiti
Modified Einstein's equations implementing both an energy-dependent Newtonian and cosmological constant can be obtained via a modified action characterised by a non-minimal gravity…
Regular Black Holes from Proper-Time flow in Quantum Gravity and their Quasinormal modes, Shadow and Hawking radiation
Alfio Bonanno, Roman A. Konoplya, Giovanni Oglialoro +1
We derive a class of regular black holes from the proper-time renormalization group approach to asymptotically safe gravity. A central challenge is the robustness of physical predi…
Searching for quantum-gravity footprint around stellar-mass black holes
Luigi Foschini, Alberto Vecchiato, Alfio Bonanno
According to the asymptotically safe gravity, black holes may have characteristics different from those described according to general relativity if the running of the gravitationa…
Renormalization Group-Improved Gravitational Action: A Lagrangian Framework
Alfio Bonanno, Konstantinos F. Dialektopoulos, Vasilios Zarikas
A new approach for embedding the renormalization group running of Newton's constant and cosmological constant in gravity is proposed. This approach is based on a gravitational Lagr…
Reply to "Comment" on "Regular evaporating black holes with stable cores"
Alfio Bonanno, Amir-Pouyan Khosravi, Frank Saueressig
We reply to the ``Comment'' on ``Regular evaporating black holes with stable cores'' by R. Carballo-Rubio, F. Di Filippo, S. Liberati, C. Pacilio, and M. Visser. As a key result, w…
Dust collapse in asymptotic safety: a path to regular black holes
Alfio Bonanno, Daniele Malafarina, Antonio Panassiti
Regular black hole spacetimes are obtained from an effective Lagrangian for Quantum Einstein Gravity. The interior matter is modeled as a dust fluid, which interacts with the geome…
Regular evaporating black holes with stable cores
Alfio Bonanno, Amir-Pouyan Khosravi, Frank Saueressig
A feature shared by many regular black hole spacetimes is the occurrence of a Cauchy horizon. It is then commonly believed that this renders the geometry unstable against perturbat…
Non-symmetric wormholes and localized Big Rip singularities in Einstein-Weyl gravity
Alfio Bonanno, Samuele Silveravalle, Alessandro Zuccotti
The inclusion of the Weyl squared term in the gravitational action is one of the most simple, yet non trivial modifications to General Relativity at high energies. Nevertheless the…
Swiss-cheese cosmologies with variable and from the renormalization group
Fotios K. Anagnostopoulos, Alfio Bonanno, Ayan Mitra +1
A convincing explanation for the nature of the dark energy and dark matter is still missing. In recent works a RG-improved swiss-cheese cosmology with an evolving cosmological cons…
The gravitational field of a star in quadratic gravity
Alfio Bonanno, Samuele Silveravalle
The characterization of the gravitational field of isolated objects is still an open question in quadratic theories of gravity. We study static equilibrium solutions for a self-gra…
Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion
Ayan Mitra, Vasilios Zarikas, Alfio Bonanno +2
In a recent work, it has been proposed that the recent cosmic passage to a cosmic acceleration era is the result of the existence of small anti-gravity sources in each galaxy and c…
Effective field equations and scale-dependent couplings in gravity
Alfio Bonanno, Georgios Kofinas, Vasilios Zarikas
A new set of field equations for a space-time dependent Newton's constant and cosmological constant in the presence of matter is presented. We prove that it represent…
Regular black holes with stable cores
Alfio Bonanno, Amir-Pouyan Khosravi, Frank Saueressig
Non-singular black hole geometries typically come with two spacetime horizons: an (outer) event horizon and an (inner) Cauchy horizon. This nurtures the speculation that they may b…
Gravitational antiscreening in stellar interiors
Alfio Bonanno, Roberto Casadio, Alessia Platania
A new class of relativistic stellar structure equations which include the effects of an energy-dependent Newton coupling is presented. Significant modifications in the mass-radius…
Characterizing black hole metrics in quadratic gravity
Alfio Bonanno, Samuele Silveravalle
The recent discovery of non-Schwarzschild black hole spacetimes has opened new directions of research in higher-derivative gravitational theories. However, despite intense analytic…
Cosmological bounds on the field content of asymptotically safe gravity-matter models
Alfio Bonanno, Alessia Platania, Frank Saueressig
We use the non-Gaussian fixed points (NGFPs) appearing in the renormalization group flow of gravity and gravity-matter systems to construct models of NGFP-driven inflation via a re…
Gravitational collapse in Quantum Einstein Gravity
Alfio Bonanno, Benjamin Koch, Alessia Platania
The existence of spacetime singularities is one of the biggest problems of nowadays physics. According to Penrose, each physical singularity should be covered by a "cosmic censor"…
Bouncing and emergent cosmologies from ADM RG flows
Alfio Bonanno, Gabriele Gionti, Alessia Platania
The Asymptotically Safe Gravity provides a framework for the description of gravity from the trans-Planckian regime to cosmological scales. According to this scenario, the cosmolog…
Simultaneous observation of gravitational and electromagnetic waves
Vincenzo Branchina, Manlio De Domenico
Assuming that the short gamma-ray burst detected by the Fermi Gamma-Ray Space Telescope about 0.4 seconds after the gravitational waves observed by the LIGO and VIRGO Collaboration…