Skewness as a probe of non-Gaussian initial conditions

Durrer, Ruth; Juszkiewicz, Roman; Kunz, Martin; Uzan, Jean-Philippe

doi:10.1103/PhysRevD.62.021301

Scientific article

English

Skewness as a probe of non-Gaussian initial conditions

Contributors

Durrer, Ruth

; Juszkiewicz, Roman; Kunz, Martin; Uzan, Jean-Philippe

Published in

Physical review. D. Particles and fields, vol. 62, no. 021301, 5

Publication date

2000

Abstract

We compute the skewness of the matter distribution arising from nonlinear 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 nonlinear clustering and the part due to the intrinsic non-Gaussianity of the models. We finally extend our estimates to higher moments.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique théorique

Citation (ISO format)

DURRER, Ruth et al. Skewness as a probe of non-Gaussian initial conditions. In: Physical review. D. Particles and fields, 2000, vol. 62, n° 021301, p. 5. doi: 10.1103/PhysRevD.62.021301

Article (Accepted version)

Identifiers

PID : unige:971
DOI : 10.1103/PhysRevD.62.021301
arXiv : astro-ph/0005087

Journal ISSN

0556-2821

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332downloads

Creation

26/02/2009 16:59:46

First validation

26/02/2009 16:59:46

Update

14/03/2023 15:01:15

Status update

14/03/2023 15:01:15

Last indexation

29/10/2024 11:13:33

Skewness as a probe of non-Gaussian initial conditions

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

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Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation