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Skewness as a probe of non-Gaussian initial conditions

Ruth Durrer·Roman Juszkiewicz·Martin Kunz·Jean-Philippe Uzan
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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.

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Ruth Durrer, Roman Juszkiewicz, Martin Kunz, Jean-Philippe Uzan. 2000-05-04. Skewness as a probe of non-Gaussian initial conditions. https://doi.org/10.1103/physrevd.62.021301

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