Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity

We obtain exact expressions for the effect of primordial non-Gaussianity on the matter density perturbation up to second order in a LambdaCDM cosmology, fully accounting for the general relativistic corrections arising on scales comparable with the Hubble radius. We present our results both in the P...

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Autores principales: Bartolo, Nicola, Matarrese, Sabino, Pantano, Ornella, Riotto, Antonio
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Class. Quantum Gravity 2010
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1088/0264-9381/27/12/124009
http://cds.cern.ch/record/1243709
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author Bartolo, Nicola
Matarrese, Sabino
Pantano, Ornella
Riotto, Antonio
author_facet Bartolo, Nicola
Matarrese, Sabino
Pantano, Ornella
Riotto, Antonio
author_sort Bartolo, Nicola
collection CERN
description We obtain exact expressions for the effect of primordial non-Gaussianity on the matter density perturbation up to second order in a LambdaCDM cosmology, fully accounting for the general relativistic corrections arising on scales comparable with the Hubble radius. We present our results both in the Poisson gauge and in the comoving and synchronous gauge, which are relevant for comparison to different cosmological observables.
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publishDate 2010
publisher Class. Quantum Gravity
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spelling cern-12437092023-10-04T08:16:31Z doi:10.1088/0264-9381/27/12/124009 http://cds.cern.ch/record/1243709 eng Bartolo, Nicola Matarrese, Sabino Pantano, Ornella Riotto, Antonio Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity Astrophysics and Astronomy We obtain exact expressions for the effect of primordial non-Gaussianity on the matter density perturbation up to second order in a LambdaCDM cosmology, fully accounting for the general relativistic corrections arising on scales comparable with the Hubble radius. We present our results both in the Poisson gauge and in the comoving and synchronous gauge, which are relevant for comparison to different cosmological observables. We obtain exact expressions for the effect of primordial non-Gaussianity on the matter density perturbation up to second order in a LambdaCDM cosmology, fully accounting for the general relativistic corrections arising on scales comparable with the Hubble radius. We present our results both in the Poisson gauge and in the comoving and synchronous gauge, which are relevant for comparison to different cosmological observables. info:eu-repo/grantAgreement/EC/FP7/237920 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1243709 Class. Quantum Gravity Class. Quantum Gravity, (2010) pp. 124009 2010-02-22
spellingShingle Astrophysics and Astronomy
Bartolo, Nicola
Matarrese, Sabino
Pantano, Ornella
Riotto, Antonio
Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title_full Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title_fullStr Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title_full_unstemmed Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title_short Second-order matter perturbations in a LambdaCDM cosmology and non-Gaussianity
title_sort second-order matter perturbations in a lambdacdm cosmology and non-gaussianity
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1088/0264-9381/27/12/124009
http://cds.cern.ch/record/1243709
http://cds.cern.ch/record/1243709
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AT matarresesabino secondordermatterperturbationsinalambdacdmcosmologyandnongaussianity
AT pantanoornella secondordermatterperturbationsinalambdacdmcosmologyandnongaussianity
AT riottoantonio secondordermatterperturbationsinalambdacdmcosmologyandnongaussianity

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