39 citations · 91 across the 7 of their papers we have counts for
7 papers
Bispectrum non-Gaussian Covariance in Redshift Space
Jacopo Salvalaggio, Lina Castiblanco, Jorge Noreña +2
We provide an analytical description of the galaxy bispectrum covariance and the power spectrum-bispectrum cross-covariance in redshift space that captures the dominant non-Gaussia…
A Model for the Squeezed Bispectrum in the Non-Linear Regime
Matteo Biagetti, Juan Calles, Lina Castiblanco +2
We present a model for the squeezed dark matter bispectrum, where the short modes are deep in the non-linear regime. We exploit the consistency relations for large-scale structures…
Fisher Forecasts for Primordial non-Gaussianity from Persistent Homology
Matteo Biagetti, Juan Calles, Lina Castiblanco +2
We study the information content of summary statistics built from the multi-scale topology of large-scale structures on primordial non-Gaussianity of the local and equilateral type…
The Covariance of Squeezed Bispectrum Configurations
Matteo Biagetti, Lina Castiblanco, Jorge Noreña +1
We measure the halo bispectrum covariance in a large set of N-body simulations and compare it with theoretical expectations. We find a large correlation among (even mildly) squeeze…
From matter to galaxies: General relativistic bias for the one-loop bispectrum
Juan Calles, Lina Castiblanco, Jorge Noreña +1
We write down the Lagrangian bias expansion in general relativity up to 4th order in terms of operators describing the curvature of an early-time hypersurface for comoving observer…
Large scale structures: from inflation to today: a brief report
Lina Castiblanco, Radouane Gannouji, Clément Stahl
We briefly review some selected topics gravitating around large scale structures. We derive from inflation the evolution of dark matter perturbations. The stress is put on the non-…
Relativistic cosmological large scale structures at one-loop
Lina Castiblanco, Radouane Gannouji, Jorge Noreña +1
The large scale structure bispectrum in the squeezed limit couples large with small scales. Since relativity is important at large scales and non-linear loop corrections are import…