231 citations · 2.2k across the 49 of their papers we have counts for
40 papers · 1 filter
Cosmological inference including massive neutrinos from the matter power spectrum: biases induced by uncertainties in the covariance matrix
S. Gouyou Beauchamps, P. Baratta, S. Escoffier +4
Data analysis from upcoming large galaxy redshift surveys, such as Euclid and DESI will significantly improve constraints on cosmological parameters. To optimally extract the infor…
COVMOS: a new Monte Carlo approach for galaxy clustering analysis
Philippe Baratta, Julien Bel, Sylvain Gouyou Beauchamps +1
We validate the COVMOS method introduced in Baratta et al. (2019) allowing for the fast simulation of catalogues of different cosmological field tracers (e.g. dark matter particles…
The multipole expansion of the local expansion rate
Basheer Kalbouneh, Christian Marinoni, Julien Bel
We design a new observable, the expansion rate fluctuation , to characterize deviations from the linear relation between redshift and distance in the local universe. We also sho…
DEMNUni: comparing nonlinear power spectra prescriptions in the presence of massive neutrinos and dynamical dark energy
G. Parimbelli, C. Carbone, J. Bel +4
We provide an accurate comparison, against large cosmological -body simulations, of different prescriptions for modelling nonlinear matter power spectra in the presence of massi…
Constraining spatial curvature with large-scale structure
Julien Bel, Julien Larena, Roy Maartens +2
We analyse the clustering of matter on large scales in an extension of the concordance model that allows for spatial curvature. We develop a consistent approach to curvature and wi…
High-precision Monte-Carlo modelling of galaxy distribution
Philippe Baratta, Julien Bel, Stephane Plaszczynski +1
We revisit the case of fast Monte-Carlo simulations of galaxy positions for a non-gaussian field. More precisely we address the question of generating a 3D field with a given one-p…