389 citations · 1k across the 13 of their papers we have counts for
13 papers
Extended Universal Rotational Curve of Spiral Galaxies
Esha Bhatia, Paolo Salucci, Tiziano Schiavone +1
In this work, we aim to advance the Universal Rotation Curve (URC) paradigm by leveraging new data and extending its observational domain. Building on previous studies that establi…
Revisiting the Matter Creation Process: Observational Constraints on Gravitationally Induced Dark Energy and the Hubble Tension
Tiziano Schiavone, Mariaveronica De Angelis, Luis A. Escamilla +2
The Hubble tension and the unknown origin of dark energy motivate the exploration of alternative mechanisms for late-time cosmic acceleration. We investigate gravitationally induce…
Exponential cosmology with massive neutrinos as a dynamical dark energy framework
Simone D'Onofrio, Sergei Odintsov, Tiziano Schiavone
The exponential gravity model provides a theoretically well-motivated extension of General Relativity, introducing a modified gravitational dynamics at late times consistent…
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.…
Evolution of an effective Hubble constant in modified gravity
Tiziano Schiavone, Giovanni Montani
We investigate the Hubble constant tension within modified gravity in the Jordan frame, focusing on its application to the dynamics of an isotropic Universe. A scalar field,…
The skewness of the distance-redshift relation in CDM
Tiziano Schiavone, Enea Di Dio, Giuseppe Fanizza
Starting from a recently proposed framework for the evaluation of the cosmological averages, we evaluate the higher-order moments for the distribution of a given observable. Then,…
The Hubble constant tension: current status and future perspectives through new cosmological probes
Maria Dainotti, Biagio De Simone, Giovanni Montani +2
The Hubble constant () tension is one of the major open problems in modern cosmology. This tension is the discrepancy, ranging from 4 to 6 , between the value estimat…
Signature of gravity via Lemaître-Tolman-Bondi inhomogeneous perturbations
Tiziano Schiavone, Giovanni Montani
We analyze inhomogeneous cosmological models in the local Universe, described by the Lemaître-Tolman-Bondi (LTB) metric and developed using linear perturbation theory on a homogene…
gravity in the Jordan Frame as a Paradigm for the Hubble Tension
Tiziano Schiavone, Giovanni Montani, Flavio Bombacigno
We analyse the gravity in the so-called Jordan frame, as implemented to the isotropic Universe dynamics. The goal of the present study is to show that, according to recent d…
Running Hubble constant from the SNe Ia Pantheon sample?
Tiziano Schiavone, Giovanni Montani, Maria Giovanna Dainotti +3
The mismatch between different independent measurements of the expansion rate of the Universe is known as the Hubble constant () tension, and it is a serious and pressing prob…
On the evolution of the Hubble constant with the SNe Ia Pantheon Sample and Baryon Acoustic Oscillations: a feasibility study for GRB-cosmology in 2030
Maria Giovanna Dainotti, Biagio De Simone, Tiziano Schiavone +5
The difference from 4 to 6 in the Hubble constant () between the values observed with the local (Cepheids and Supernovae Ia, SNe Ia) and the high-z probes (CMB obtained by…
On the evolution of inhomogeneous perturbations in the CDM model and modified gravity theories
Tiziano Schiavone, Giovanni Montani
We focus on weak inhomogeneous models of the Universe at low redshifts, described by the Lemaître-Tolman-Bondi (LTB) metric. The principal aim of this work is to compare the evolut…
On the Hubble constant tension in the SNe Ia Pantheon sample
Maria Giovanna Dainotti, Biagio De Simone, Tiziano Schiavone +3
The Hubble constant () tension between Type Ia Supernovae (SNe Ia) and Planck measurements ranges from 4 to 6 . To investigate this tension, we estimate in the C…