72 citations · 424 across the 19 of their papers we have counts for
19 papers
Phenomenology of Horndeski Gravity under Positivity Bounds
Dani de Boe, Gen Ye, Fabrizio Renzi +3
A set of conditions that any effective field theory needs to satisfy in order to allow for the existence of a viable UV completion has recently gained attention in the cosmological…
A novel model-marginalized cosmological bound on the QCD axion mass
Eleonora Di Valentino, Stefano Gariazzo, William Giarè +3
We present model-marginalized limits on mixed hot dark matter scenarios, which consider both thermal neutrinos and thermal QCD axions. A novel aspect of our analyses is the inclusi…
Is the Harrison-Zel'dovich spectrum coming back? ACT preference for and its discordance with Planck
William Giarè, Fabrizio Renzi, Olga Mena +2
The Data Release 4 of the Atacama Cosmology Telescope (ACT) shows an agreement with an Harrison-Zel'dovich primordial spectrum (), introducing a tension with a…
Cosmological Bound on the QCD Axion Mass, Redux
Francesco D'Eramo, Eleonora Di Valentino, William Giarè +5
We revisit the joint constraints in the mixed hot dark matter scenario in which both thermally produced QCD axions and relic neutrinos are present. Upon recomputing the cosmologica…
Climbing out of the shadows: building the distance ladder with black hole images
Fabrizio Renzi, Matteo Martinelli
In the era of precision cosmology it has became crucial to find new and competitive probes to estimate cosmological parameters, in an effort of finding answers to the current cosmo…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…
The resilience of the Etherington-Hubble relation
Fabrizio Renzi, Natalie B. Hogg, William Giarè
The Etherington reciprocity theorem, or distance duality relation (DDR), relates the mutual scaling of cosmic distances in any metric theory of gravity where photons are massless a…
Cosmological forecasts on thermal axions, relic neutrinos and light elements
William Giarè, Fabrizio Renzi, Alessandro Melchiorri +2
One of the targets of future Cosmic Microwave Background and Baryon Acoustic Oscillation measurements is to improve the current accuracy in the neutrino sector and reach a much bet…
Current and Future constraints on single-field -Attractor model
Guadalupe Cañas-Herrera, Fabrizio Renzi
We study here the observational constraints on single-field inflationary models achievable with the next generation of CMB experiments. We particularly focus on a Stage-IV like exp…
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…
A look at the Hubble speed from first principles
Fabrizio Renzi, Alessandra Silvestri
We introduce a novel way of measuring from a combination of independent geometrical datasets, with no need of calibration nor of the choice of a cosmological model. We build…
Strongly lensed supernovae as a self-sufficient probe of the distance duality relation
Fabrizio Renzi, Natalie B. Hogg, Matteo Martinelli +1
The observation of strongly lensed Type Ia supernovae enables both the luminosity and angular diameter distance to a source to be measured simultaneously using a single observation…
Strong Lensing Time Delay Constraints on Dark Energy: a Forecast
Banafshe Shiralilou, Matteo Martinelli, Georgios Papadomanolakis +3
Measurements of time delays between multiple quasar images produced by strong lensing are reaching a sensitivity that makes them a promising cosmological probe. Future surveys will…
What is the amplitude of the Gravitational Waves background expected in the Starobinsky model ?
Fabrizio Renzi, Mehdi Shokri, Alessandro Melchiorri
The inflationary model proposed by Starobinski in 1979 predicts an amplitude of the spectrum of primordial gravitational waves, parametrized by the tensor to scalar ratio, of $r=0.…
Cosmic Microwave Background constraints on non-minimal couplings in inflationary models with power law potentials
Mehdi Shokri, Fabrizio Renzi, Alessandro Melchiorri
Inflationary models with power-law potentials are starting to be severely constrained by the recent measurements of Cosmic Microwave Background anisotropies provided by the Planck…
The cosmological impact of future constraints on from gravitational-wave standard sirens
Eleonora Di Valentino, Daniel E. Holz, Alessandro Melchiorri +1
Gravitational-wave standard sirens present a novel approach for the determination of the Hubble constant. After the recent spectacular confirmation of the method thanks to GW170817…
The Impact of Primordial Magnetic Fields on Future CMB Bounds on Inflationary Gravitational Waves
Fabrizio Renzi, Giovanni Cabass, Eleonora Di Valentino +2
We discuss whether an unaccounted contribution to the Cosmic Microwave Background polarization -mode by primordial magnetic fields (PMFs) can bias future constraints on inflatio…
Cornering the Planck tension with future CMB data
Fabrizio Renzi, Eleonora Di Valentino, Alessandro Melchiorri
The precise measurements of Cosmic Microwave Background Anisotropy angular power spectra made by the Planck satellite show an anomalous value for the lensing amplitude, defined by…
Study of MRI in stratified viscous plasma configuration
Nakia Carlevaro, Giovanni Montani, Fabrizio Renzi
We analyze the morphology of the Magneto-rotational Instability (MRI) for a stratified viscous plasma disk configuration in differential rotation, taking into account the so-called…