Non-Gaussianity constraints using future radio continuum surveys and the multitracer technique
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
Tighter constraints on measurements of primordial non-Gaussianity (PNG) will allow the differentiation of inflationary scenarios. The cosmic microwave background bispectrum – the standard method of measuring the local non-Gaussianity – is limited by cosmic variance. Therefore, it is sensible to investigate measurements of non-Gaussianity using the large-scale structure. This can be done by investigating the effects of non-Gaussianity on the power spectrum on large scales. In this study, we forecast the constraints on the local PNG parameter fNL that can be obtained with future radio surveys.
Description
Keywords
Galaxies: active, Cosmological parameters, Inflation, Large-scale structure of Universe, Radio continuum: galaxies
Citation
Camera, S. et al. (2020). Non-Gaussianity constraints using future radio continuum surveys and the multitracer technique. Monthly Notices of the Royal Astronomical Society, 492(1), Pages 1513–1522