Skewness as a probe of non-Gaussian initial conditions
Astrophysics
2009-12-30 v1
Abstract
We compute the skewness of the matter distribution arising from non-linear evolution and from non-Gaussian initial perturbations. We apply our result to a very generic class of models with non-Gaussian initial conditions and we estimate analytically the ratio between the skewness due to non-linear clustering and the part due to the intrinsic non-Gaussianity of the models. We finally extend our estimates to higher moments.
Cite
@article{arxiv.astro-ph/0005087,
title = {Skewness as a probe of non-Gaussian initial conditions},
author = {Ruth Durrer and Roman Juszkiewicz and Martin Kunz and Jean-Philippe Uzan},
journal= {arXiv preprint arXiv:astro-ph/0005087},
year = {2009}
}
Comments
5 pages, 2 ps-figs., accepted for publication in PRD, rapid comm