TY - JOUR
T1 - Accurate predictions for the scale-dependent galaxy bias from primordial non-Gaussianity
AU - Desjacques, Vincent
AU - Jeong, Donghui
AU - Schmidt, Fabian
PY - 2011/9/6
Y1 - 2011/9/6
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.84.061301
DO - 10.1103/PhysRevD.84.061301
M3 - Article
AN - SCOPUS:80053899494
SN - 1550-7998
VL - 84
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 6
M1 - 061301
ER -