Constraining primordial non-Gaussianity by combining photometric galaxy and 21 cm intensity mapping surveys

Abstract The fluctuations produced during cosmic inflation may exhibit non-Gaussian characteristics that are imprinted in the large-scale structure of the Universe. This non-Gaussian imprint is an ultra-large scale signal that can be detected using the power spectrum. We focus on the local-type non-...

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Bibliographic Details
Main Authors: Mponeng Kopana, Sheean Jolicoeur, Roy Maartens
Format: Article
Language:English
Published: SpringerOpen 2025-05-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14241-7
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