5 papers
Cosmographic Footprints of Dynamical Dark Energy
Elisa Fazzari, William Giarè, Eleonora Di Valentino
We introduce a novel cosmographic framework to trace the late-time kinematics of the Universe without assuming any underlying dynamics. The method relies on generalized Padé-$(2,1)…
Two Dynamical Scenarios for Binned Master Sample Interpretation
Giovanni Montani, Elisa Fazzari, Nakia Carlevaro +1
We analyze two different scenarios for the late Universe dynamics, resulting into Hubble parameters deviating from the CDM, mainly for the presence of an additional free paramet…
The effective running Hubble constant in SNe Ia as a marker for the dark energy nature
E. Fazzari, M. G. Dainotti, G. Montani +1
We propose a new method that reveal the nature of dark energy (DE) evolution. Specifically, the method consists of studying the evolving trend regarding the effective running Hubbl…
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.…
Running Einstein Constant and a Possible Vacuum State of the Universe
Giovanni Montani, Giulia Maniccia, Elisa Fazzari +1
We propose a revised formulation of General Relativity for cosmological settings, in which the Einstein constant varies with the energy density of the Universe. We demonstrate that…