60 citations · 315 across the 9 of their papers we have counts for
9 papers
GEO-FPT: a model of the galaxy bispectrum at mildly non-linear scales
Sergi Novell-Masot, Davide Gualdi, Héctor Gil-Marín +1
We present GEO-FPT (Geometric Fitted Perturbation Theory), a new model for the galaxy bispectrum anisotropic signal in redshift space, with functional form rooted in perturbation t…
Integrated trispectrum detection from BOSS DR12 NGC CMASS
Davide Gualdi, Licia Verde
We present the first detection of the integrated trispectrum (-trispectrum) monopole and quadrupoles signal from BOSS CMASS NGC DR12. Extending the FKP estimators forma…
Joint analysis of anisotropic power spectrum, bispectrum and trispectrum: application to N-body simulations
Davide Gualdi, Hector Gil-Marin, Licia Verde
We perform for the first time a joint analysis of the monopole and quadrupoles for power spectrum, bispectrum and integrated trispectrum (i-trispectrum) from the redshift space mat…
Matter trispectrum: theoretical modelling and comparison to N-body simulations
Davide Gualdi, Sergi Novell-Masot, Héctor Gil-Marín +1
The power spectrum has long been the workhorse summary statistics for large-scale structure cosmological analyses. However, gravitational non-linear evolution moves precious cosmol…
GEOMAX: beyond linear compression for 3pt galaxy clustering statistics
Davide Gualdi, Héctor Gil-Marín, Marc Manera +2
We present the GEOMAX algorithm and its Python implementation for a two-step compression of bispectrum measurements. The first step groups bispectra by the geometric properties of…
Beyond two-point statistics: using the minimum spanning tree as a tool for cosmology
Krishna Naidoo, Lorne Whiteway, Elena Massara +5
Cosmological studies of large-scale structure have relied on two-point statistics, not fully exploiting the rich structure of the cosmic web. In this paper we show how to capture s…
Geometrical compression: a new method to enhance the BOSS galaxy bispectrum monopole constraints
Davide Gualdi, Héctor Gil-Marín, Marc Manera +2
We present a novel method to compress galaxy clustering three-point statistics and apply it to redshift space galaxy bispectrum monopole measurements from BOSS DR12 CMASS data cons…
Enhancing BOSS bispectrum cosmological constraints with maximal compression
Davide Gualdi, Héctor Gil-Marín, Robert L. Schuhmann +3
We apply two compression methods to the galaxy power spectrum monopole/quadrupole and bispectrum monopole measurements from the BOSS DR12 CMASS sample. Both methods reduce the dime…
Maximal compression of the redshift space galaxy power spectrum and bispectrum
Davide Gualdi, Marc Manera, Benjamin Joachimi +1
We explore two methods of compressing the redshift space galaxy power spectrum and bispectrum with respect to a chosen set of cosmological parameters. Both methods involve reducing…