10 papers
N-body Simulations of Large-Scale Structure in the Generalized Cubic Covariant Galileon Model
Luís Atayde, Noemi Frusciante, Baojiu Li
We present the first N-body simulations of structure formation in the Generalized Cubic Covariant Galileon (GCCG) model. This theory extends the cubic covariant Galileon through po…
Can cosmic voids ease the Hubble tension? Local expansion in CDM
Tommaso Moretti, Noemi Frusciante, Giovanni Verza
We investigate the effect of local cosmic voids on low-redshift measurements of the Hubble rate in flat CDM cosmologies. Using a hydrodynamical model for isolated spherical…
Beyond ÎCDM with the SKA Observatory -- I: Probing Gravity on Cosmological Scales
S. Camera, C. Addis, S. L. Guedezounme +26
General relativity (GR) is currently the best description of the gravitational interaction at our disposal and is one of the foundations of the concordance cosmological model. For…
How deep can a cosmic void be? Voids-informed theoretical bounds in Galileon gravity
Tommaso Moretti, Noemi Frusciante, Giovanni Verza +1
We establish a void-based consistency test for Galileon scalar-tensor theories. We show that the previously reported unphysical breakdown of the predicted Newtonian force in certai…
Inverse non-metricity in gravity: cosmology and observational constraints
LuÃs Atayde, Simão Marques Nunes, Noemi Frusciante
We study a minimal modified gravity scenario in the symmetric teleparallel (non-metricity) formulation, focusing on an inverse non-metricity term with . The mode…
-EFTCAMB: A Cobaya-Integrated, Python-Wrapped Extension of EFTCAMB for Covariant Horndeski Gravity
Gen Ye, Shijie Lin, Jiaming Pan +6
We present , the official successor to . The original is designed as a consistent and numerically stable implemen…