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Constraints on dark energy from the abundance of massive galaxies
Paola Santini, Nicola Menci, Marco Castellano
This conference proceedings paper provides a short summary of the constraints presented by Menci et al. (2020) and Menci et al. (2022) to dynamical dark energy models. Dynamical da…
High-Redshift Galaxies from Early JWST Observations: Constraints on Dark Energy Models
N. Menci, M. Castellano, P. Santini +3
Early observations with JWST have led to the discovery of an unexpected large density (stellar mass density ) of massive galaxies (stellar m…
Constraints on Dynamical Dark Energy Models from the Abundance of Massive Galaxies at High Redshifts
N. Menci, A. Grazian, M. Castellano +9
We compare the maximal abundance of massive systems predicted in different dynamical dark energy (DDE) models at high redshifts z = 4-7 with the measured abundance of the most mass…
Galaxy Formation in Sterile Neutrino Dark Matter Models
N. Menci, A. Grazian, A. Lamastra +3
We investigate galaxy formation in models with dark matter (DM) constituted by sterile neutrinos. Given their large parameter space, defined by the combinations of sterile neutrino…
Ultra-faint high-redshift galaxies in the Frontier Fields
Bin Yue, Andrea Ferrara, Eros Vanzella +1
By combining cosmological simulations with Frontier Fields project lens models we find that, in the most optimistic case, galaxies as faint as (AB magnitude at…
New observations of z~7 galaxies: evidence for a patchy reionization
L. Pentericci, E. Vanzella, A. Fontana +18
We present new results from our search for z~7 galaxies from deep spectroscopic observations of candidate z-dropouts in the CANDELS fields. Despite the extremely low flux limits ac…