364 citations · 2.7k across the 39 of their papers we have counts for
41 papers
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Testing Yukawa cosmology at the Milky Way and M31 galactic scales
Rocco D'Agostino, Kimet Jusufi, Salvatore Capozziello
We address the galaxy rotation curves through the Yukawa gravitational potential emerging as a correction of the Newtonian potential in extended theories of gravity. On the one han…
Geometric and topological corrections to Schwarzschild black hole
Rocco D'Agostino, Orlando Luongo, Stefano Mancini
In this paper, we compute departures in the black hole thermodynamics induced by either geometric or topological corrections to general relativity. Specifically, we analyze the sph…
Reconstructing the distortion function of non-local cosmology: a model-independent approach
Salvatore Capozziello, Rocco D'Agostino
We consider non-local modifications of General Relativity given by a distortion function in terms of the inverse of the d'Alembert operator. The inclusion of these terms is motivat…
Cosmographic view on the and tensions
Rocco D'Agostino, Rafael C. Nunes
Measurements of the and parameters within the standard cosmological model recently highlighted significant statistical tensions between the cosmic microwave background…
Exploring departures from Schwarzschild black hole in gravity
Vittorio De Falco, Francesco Bajardi, Rocco D'Agostino +2
Different astrophysical methods can be combined to detect possible deviations from General Relativity. In this work, we consider a class of gravity models selected by the ex…
Role of spatial curvature in the primordial gravitational wave power spectrum
Rocco D'Agostino, Matteo Califano, Nicola Menadeo +1
This paper investigates the effects of nonvanishing spatial curvature on the propagation of primordial gravitational waves produced during inflation. In particular, we consider ten…
A cosmographic outlook on dark energy and modified gravity
Salvatore Capozziello, Rocco D'Agostino
The cosmographic technique is a powerful model-independent tool for distinguishing between competing cosmological scenarios. The key strengths and weaknesses of standard cosmograph…
Early and late time cosmology: the gravity perspective
Francesco Bajardi, Rocco D'Agostino, Micol Benetti +2
Discrepancies between observations at early and late cosmic epochs, and the vacuum energy problem associated with the interpretation of cosmological constant, are questioning the $…
Forecasting constraints on deviations from general relativity in gravity with standard sirens
Rocco D'Agostino, Rafael C. Nunes
In this work, we explore how modified gravity theories based on the non-metricity scalar, known as gravity, affect the propagation of gravitational waves from inspiraling of…
Black hole thermodynamics from logotropic fluids
Salvatore Capozziello, Rocco D'Agostino, Alessio Lapponi +1
We show that the Einstein field equations with a negative cosmological constant can admit black hole solutions whose thermodynamics coincides with that of logotropic fluids, recent…
Late-time constraints on modified Gauss-Bonnet cosmology
Francesco Bajardi, Rocco D'Agostino
In this paper, we consider a gravitational action containing a combination of the Ricci scalar, , and the topological Gauss--Bonnet term, . Specifically, we study the cosmolo…
The phase-space view of non-local gravity cosmology
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
We consider non-local Integral Kernel Theories of Gravity in a homogeneous and isotropic universe background as a possible scenario to drive the cosmic history. In particular, we i…
Healing the cosmological constant problem during inflation through a unified quasi-quintessence matter field
Rocco D'Agostino, Orlando Luongo, Marco Muccino
We heal the cosmological constant problem by means of a \emph{cancellation mechanism} that adopts a phase transition during which quantum fluctuations are eliminated. To this purpo…
Constraining primordial black holes as a fraction of dark matter through accretion disk luminosity
Rocco D'Agostino, Roberto Giambò, Orlando Luongo
In this paper, we consider the hypothesis that fractions of dark matter could be constituted by primordial black holes (PBHs). To test this possibility, we work out the observation…
Model-independent reconstruction of non-metric gravity
Salvatore Capozziello, Rocco D'Agostino
We consider gravity mediated by non-metricity, with vanishing curvature and torsion. The gravitational action, including an arbitrary function of the non-metric scalar, is investig…
Thermodynamic parametrization of dark energy
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
We propose a model-independent parametrization of dark energy motivated by thermodynamics. To this aim, we consider Padé polynomials to reconstruct the form of deceleration paramet…
Cosmological viability of a double field unified model from warm inflation
Rocco D'Agostino, Orlando Luongo
In this paper, we investigate the cosmological viability of a double scalar field model motivated by warm inflation. To this end, we first set up the theoretical framework in which…
Einstein, Planck and Vera Rubin: relevant encounters between the Cosmological and the Quantum Worlds
Paolo Salucci, Giampiero Esposito, Gaetano Lambiase +38
In Cosmology and in Fundamental Physics there is a crucial question like: where the elusive substance that we call Dark Matter is hidden in the Universe and what is it made of?, th…
High-redshift cosmography: auxiliary variables versus Padé polynomials
Salvatore Capozziello, Rocco D'Agostino, Orlando Luongo
Cosmography becomes non-predictive when cosmic data span beyond the red shift limit . This leads to a \emph{strong convergence issue} that jeopardizes its viability. In…
Black holes and naked singularities from Anton-Schmidt's fluids
Salvatore Capozziello, Rocco D'Agostino, Daniele Gregoris
Adopting the Tolman-Oppenheimer-Volkoff formalism, we propose a new analytical solution for a static and spherically symmetric black hole where the cosmological constant is general…
Measurements of in modified gravity theories: The role of lensed quasars in the late-time Universe
Rocco D'Agostino, Rafael C. Nunes
In this work, we obtain measurements of the Hubble constant in the context of modified gravity theories. We set up our theoretical framework by considering viable cosmological $f(R…
Forecasts on the speed of gravitational waves at high
Alexander Bonilla, Rocco D'Agostino, Rafael C. Nunes +1
The observation of GW170817 binary neutron star (BNS) merger event has imposed strong bounds on the speed of gravitational waves (GWs) locally, inferring that the speed of GWs prop…
Probing observational bounds on scalar-tensor theories from standard sirens
Rocco D'Agostino, Rafael C. Nunes
Standard sirens are the gravitational wave (GW) analog of the astronomical standard candles, and can provide powerful information about the dynamics of the Universe. In this work,…