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Primordial non-Gaussianity without tails -- how to measure fNL with the bulk of the density PDF
Oliver Friedrich, Cora Uhlemann, Francisco Villaescusa-Navarro +3
We investigate the possibility to detect primordial non-Gaussianity by analysing the bulk of the probability distribution function (PDF) of late-time cosmic density fluctuations. F…
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…
Advancing the matter bispectrum estimation of large-scale structure: fast prescriptions for galaxy mock catalogues
Johnathan Hung, Marc Manera, E. P. S. Shellard
We investigate various phenomenological schemes for the rapid generation of 3D mock galaxy catalogues with a given power spectrum and bispectrum. We apply the fast bispectrum estim…
The Dark Energy Spectroscopic Instrument (DESI)
Michael E. Levi, Lori E. Allen, Anand Raichoor +42
We present the status of the Dark Energy Spectroscopic Instrument (DESI) and its plans and opportunities for the coming decade. DESI construction and its initial five years of oper…
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…