Quijote-PNG: Quasi-maximum Likelihood Estimation of Primordial Non-Gaussianity in the Nonlinear Halo Density Field

Quijote-PNG: Quasi-maximum Likelihood Estimation of Primordial Non-Gaussianity in the Nonlinear Halo Density Field

We study primordial non-Gaussian signatures in the redshift-space halo field on nonlinear scales, using a quasi-maximum likelihood estimator based on optimally compressed power spectrum and modal bispectrum statistics. We train and validate the estimator on a suite of halo catalogs constructed from...

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Bibliographic Details
Main Authors: Gabriel Jung, Dionysios Karagiannis, Michele Liguori, Marco Baldi, William R. Coulton, Drew Jamieson, Licia Verde, Francisco Villaescusa-Navarro, Benjamin D. Wandelt
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Non-Gaussianity
Cosmological parameters from large-scale structure
Fisher’s Information
Online Access:https://doi.org/10.3847/1538-4357/acc4bd

Internet

https://doi.org/10.3847/1538-4357/acc4bd

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