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

Vincent Desjacques, Donghui Jeong, Fabian Schmidt
2011 Physical Review D  
The large-scale clustering of galaxies can serve as a probe of primordial non-Gaussianity in the Universe competitive with the anisotropies of the CMB. 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
more » ... e constraints on primordial physics with large-scale structure surveys.
doi:10.1103/physrevd.84.061301 fatcat:tirhlw7ifngp3elleuxjqdlnsu