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

Vincent Desjacques, Donghui Jeong, Fabian Schmidt

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

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.

Original languageEnglish (US)
Article number061301
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume84
Issue number6
DOIs
StatePublished - Sep 6 2011

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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