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Euclid preparation. XLI. Galaxy power spectrum modelling in real space
Euclid Collaboration, A. Pezzotta, C. Moretti +246
We investigate the accuracy of the perturbative galaxy bias expansion in view of the forthcoming analysis of the Euclid spectroscopic galaxy samples. We compare the performance of…
Optimal constraints on Primordial non-Gaussianity with the eBOSS DR16 quasars in Fourier space
Marina S. Cagliari, Emanuele Castorina, Marco Bonici +1
We present constraints on the amplitude of local Primordial Non-Gaussianities (PNG), , using the quasar sample in the Sloan Digital Sky Survey IV extended Baryon Oscill…
Unveiling dark forces with measurements of the Large Scale Structure of the Universe
Salvatore Bottaro, Emanuele Castorina, Marco Costa +2
Cosmology offers opportunities to test Dark Matter independently of its interactions with the Standard Model. We study the imprints of long-range forces acting solely in the dark s…
Large Scale Limit of the Observed Galaxy Power Spectrum
Matteo Foglieni, Mattia Pantiri, Enea Di Dio +1
The large scale limit of the galaxy power spectrum provides a unique window into the early Universe through a possible detection of scale dependent bias produced by primordial non…
Wide-angle effects in the galaxy bispectrum
Kevin Pardede, Enea Di Dio, Emanuele Castorina
Primordial non-Gaussianities (PNG) leave unique signatures in the bispectrum of the large-scale structure. With upcoming galaxy surveys set to improve PNG constraints by at least o…