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Interacting Dark Energy in a closed universe
Eleonora Di Valentino, Alessandro Melchiorri, Olga Mena +2
Recent measurements of the Cosmic Microwave Anisotropies power spectra measured by the Planck satellite show a preference for a closed universe at more than Confidence Leve…
Higher-Curvature Corrections and Tensor Modes
William Giarè, Fabrizio Renzi, Alessandro Melchiorri
Higher-curvature corrections to the effective gravitational action may leave signatures in the spectrum of primordial tensor perturbations if the inflationary energy scale is suffi…
New cosmological bounds on hot relics: Axions Neutrinos
William Giarè, Eleonora Di Valentino, Alessandro Melchiorri +1
Axions, if realized in nature, can be copiously produced in the early universe via thermal processes, contributing to the mass-energy density of thermal hot relics. In light of the…
The galaxy power spectrum take on spatial curvature and cosmic concordance
Sunny Vagnozzi, Eleonora Di Valentino, Stefano Gariazzo +3
The concordance of the CDM cosmological model in light of current observations has been the subject of an intense debate in recent months. The 2018 Planck Cosmic Microwave Backg…
Cosmology Intertwined IV: The Age of the Universe and its Curvature
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +88
A precise measurement of the curvature of the Universe is of primeval importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in…
Cosmology Intertwined III: and
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89
The standard Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few tensions and anomalies became statistically significant with t…