Accurate Predictions for the Scale-Dependent Galaxy Bias from Primordial Non-Gaussianity

Дата и время публикации : 2011-05-17T20:00:15Z

Авторы публикации и институты :
Vincent Desjacques
Donghui Jeong
Fabian Schmidt

Ссылка на журнал-издание: 2011, PRD 84, 061301
Коментарии к cтатье: 4 pages, 3 figures (v2): in press in PRD
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO

Краткий обзор статьи: 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 accurate constraints on primordial physics with large-scale structure surveys.

Category: Physics