International conference PUMA22 Probing the Universe with Multimessenger Astrophysics

Sep 26 – 30, 2022
Sestri Levante
Europe/Rome timezone

Constraing Dark Energy parameters with needlet

Sep 27, 2022, 4:25 PM
20m
Sestri Levante

Sestri Levante

Grand Hotel dei Castelli, Via Penisola Levante, 26, 16039 Sestri Levante (GE), Italy
Oral contribution

Speaker

Bianca De Caro (Istituto Nazionale di Fisica Nucleare)

Description

Euclid experiment will allow us to derive constraints on cosmological parameters and model selection through cross-correlation measurements between Cosmic Microwave Background (CMB) and Large Scale Structure (LSS). In this work we focalize on the detection of the late Integrated Sachs-Wolfe effect in order to constraint the density parameter for the dark energy $\Omega_{DE}$, the equation of state w and the speed of sound $c_s^{2}$, by means of a needlet-based cross-correlation estimator.

Primary authors

Dr Alessandro Renzi (Università degli Studi di Padova) Bianca De Caro (Istituto Nazionale di Fisica Nucleare)