3 papers
astro-ph.CO2026
Ray-traced weak lensing convergence in screened modified gravity theories
Mattia Pantiri, Matthieu Schaller, Alessandra Silvestri +2
Weak gravitational lensing is one of the primary cosmological probes, providing powerful constraints on the cosmological model. As Stage IV surveys are expected to deliver data of…
astro-ph.CO2026
Nonlinear Scales in Luminal Horndeski -- I. Halo mass function and power spectrum boost in models with Vainshtein screening
Dani de Boe, Mattia Pantiri, Gen Ye +1
We investigate nonlinear structure formation in Horndeski gravity with luminal gravitational wave speed (), assuming Vainshtein screening within the spherical collapse mod…
astro-ph.CO2024
The power spectrum of luminosity distance fluctuations in General Relativity
Mattia Pantiri, Matteo Foglieni, Enea Di Dio +1
At low redshift, it is possible to combine spectroscopic information of galaxies with their luminosity or angular diameter distance to directly measure the projection of peculiar v…