10.6k citations · 19.8k across the 136 of their papers we have counts for
19 papers · 1 filter
A double take on early and interacting dark energy from JWST
Matteo Forconi, William Giarè, Olga Mena +4
The very first light captured by the James Webb Space Telescope (JWST) revealed a population of galaxies at very high redshifts more massive than expected in the canonical CDM m…
Measuring the reionization optical depth without large-scale CMB polarization
William Giarè, Eleonora Di Valentino, Alessandro Melchiorri
We study the possibility of measuring the optical depth at reionization, , without relying on large-scale Cosmic Microwave Background (CMB) polarization. Our analysis is driven…
Hints of Neutrino Dark Matter scattering in the CMB? Constraints from the Marginalized and Profile Distributions
William Giarè, Adrià Gómez-Valent, Eleonora Di Valentino +1
We study scatter-like interactions between neutrinos and dark matter in light of different combinations of temperature, polarization and lensing data released by three independent…
Possible Impact of non-Gaussianities on cosmological constraints in neutrino physics
Matteo Forconi, Eleonora Di Valentino, Alessandro Melchiorri +1
The search for non-Gaussian signatures in the Cosmic Microwave Background (CMB) is crucial for understanding the physics of the early Universe. Given the possibility of non-Gaussia…
Exploring Modified Gravity: Constraints on the and Parametrization with WMAP, ACT, and SPT
Uendert Andrade, Abraão J. S. Capistrano, Eleonora Di Valentino +1
The cosmic acceleration problem remains one of the most significant challenges in cosmology. One of the proposed solutions to this problem is the modification of gravity on large s…
CDM model: A promising scenario for alleviation of cosmological tensions
Ozgur Akarsu, Eleonora Di Valentino, Suresh Kumar +3
We present a comprehensive analysis of the CDM model, which explores the recent conjecture suggesting a rapid transition of the Universe from anti-de Sitter vacua to de…
The state of the dark energy equation of state circa 2023
Luis A. Escamilla, William Giarè, Eleonora Di Valentino +2
We critically examine the state of current constraints on the dark energy (DE) equation of state (EoS) . Our study is motivated by the observation that, while broadly consistent…
Lensing impact on cosmic relics and tensions
William Giarè, Olga Mena, Eleonora Di Valentino
Cosmological bounds on neutrinos and additional hypothetical light thermal relics, such as QCD axions, are currently among the most restrictive ones. These limits mainly rely on Co…
Tracking the Multifield Dynamics with Cosmological Data: A Monte Carlo approach
William Giarè, Mariaveronica De Angelis, Carsten van de Bruck +1
We introduce a numerical method specifically designed for investigating generic multifield models of inflation where a number of scalar fields are minimally coupled to gravit…
Omnipotent dark energy: A phenomenological answer to the Hubble tension
Shahnawaz A. Adil, Ozgur Akarsu, Eleonora Di Valentino +4
This paper introduces the class of omnipotent dark energy (DE) models characterized by nonmonotonic energy densities that are capable of attaining negative values with correspondin…
Exploring the Growth Index : Insights from Different CMB Dataset Combinations and Approaches
Enrico Specogna, Eleonora Di Valentino, Jackson Levi Said +1
In this study we investigate the growth index , which characterizes the growth of linear matter perturbations, while analysing different cosmological datasets. We compare the…
Model-independent reconstruction of the Interacting Dark Energy Kernel: Binned and Gaussian process
Luis A. Escamilla, Ozgur Akarsu, Eleonora Di Valentino +1
The cosmological dark sector remains an enigma, offering numerous possibilities for exploration. One particularly intriguing option is the (non-minimal) interaction scenario betwee…
Impact of the damping tail on neutrino mass constraints
Eleonora Di Valentino, Stefano Gariazzo, William Giarè +1
Model-independent mass limits assess the robustness of current cosmological measurements of the neutrino mass scale. Consistency between high-multipole and low-multiple Cosmic Micr…
Extended Analysis of Neutrino-Dark Matter Interactions with Small-Scale CMB Experiments
Philippe Brax, Carsten van de Bruck, Eleonora Di Valentino +2
We explore an extension of the standard CDM model by including an interaction between neutrinos and dark matter, and making use of the ground based telescope data of the Cosmic…
New insights on -DM Interactions
Philippe Brax, Carsten van de Bruck, Eleonora Di Valentino +2
We revisit the possibility of using cosmological observations to constrain models that involve interactions between neutrinos and dark matter. We show that small-scale measurements…
A Consistent View of Interacting Dark Energy from Multiple CMB Probes
Yuejia Zhai, William Giarè, Carsten van de Bruck +3
We analyze a cosmological model featuring an interaction between dark energy and dark matter in light of the measurements of the Cosmic Microwave Background released by three indep…
Exploring bulk viscous unified scenarios with Gravitational Waves Standard Sirens
Weiqiang Yang, Supriya Pan, Eleonora Di Valentino +2
We consider the unified bulk viscous scenarios and constrain them using the Cosmic Microwave Background observations from Planck 2018 and the Pantheon sample from Type Ia Supernova…
A New Test of Dynamical Dark Energy Models and Cosmic Tensions in Hořava Gravity
Eleonora Di Valentino, Nils A. Nilsson, Mu-In Park
Horava gravity has been proposed as a renormalizable, higher-derivative, Lorentz-violating quantum gravity model without ghost problems. A Horava gravity based dark energy (HDE) mo…
Exploring the tension and the evidence of dark sector interaction from 2D BAO measurements
Armando Bernui, Eleonora Di Valentino, William Giarè +2
We explore observational constraints on a cosmological model with an interaction between dark energy (DE) and dark matter (DM), using a compilation of 15 measurements of the 2D BAO…