Skewness as a probe of non-Gaussian initial conditions

Astronomy and Astrophysics – Astrophysics

Scientific paper

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5 pages, 2 ps-figs., accepted for publication in PRD, rapid comm

Scientific paper

10.1103/PhysRevD.62.021301

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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