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American Physical Society, Physical Review D, 6(84)

DOI: 10.1103/physrevd.84.061301

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Accurate predictions for the scale-dependent galaxy bias from primordial non-Gaussianity

Journal article published in 2011 by Vincent Desjacques, Donghui Jeong ORCID, Fabian Schmidt
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The large-scale clustering of galaxies can serve as a probe of primordial non-Gaussianity in the Universe competitive with the anisotropies of the cosmic microwave background. Here, we present improved theoretical predictions which include an important, previously overlooked correction to the bias. We demonstrate that the new predictions are able to reproduce the results of N-body simulations, explaining the significant departures seen from previous theoretical results. These refined predictions open the way to accurate constraints on primordial physics with large-scale structure surveys.