51 citations · 63 across the 4 of their papers we have counts for
4 papers · 1 filter
Extremely expensive likelihoods: A variational-Bayes solution for precision cosmology
Matteo Rizzato, Elena Sellentin
We present a variational-Bayes solution to compute non-Gaussian posteriors from extremely expensive likelihoods. Our approach is an alternative for parameter inference when MCMC sa…
Breaking degeneracies with the Sunyaev-Zeldovich full bispectrum
Andrea Ravenni, Matteo Rizzato, Slađana Radinović +3
Non-Gaussian (NG) statistics of the thermal Sunyaev-Zeldovich (tSZ) effect carry significant information which is not contained in the power spectrum. Here, we perform a joint Fish…
Tomographic weak lensing bispectrum: a thorough analysis towards the next generation of galaxy surveys
Matteo Rizzato, Karim Benabed, Francis Bernardeau +1
We address key points for an efficient implementation of likelihood codes for modern weak lensing large-scale structure surveys. Specifically, we focus on the joint weak lensing co…
Testing Hu-Sawicki f(R) gravity with the Effective Field Theory approach
Bin Hu, Marco Raveri, Matteo Rizzato +1
We show how to fully map a specific model of modified gravity into the Einstein-Boltzmann solver EFTCAMB. This approach consists in few steps and allows to obtain the cosmological…