Strongly Scale-dependent Non-Gaussianity

We discuss models of primordial density perturbations where the non-Gaussianity is strongly scale-dependent. In particular, the non-Gaussianity may have a sharp cut-off and be very suppressed on large cosmological scales, but sizeable on small scales. This may have an impact on probes of non-Gaussia...

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Detalles Bibliográficos
Autores principales: Riotto, Antonio, Sloth, Martin S
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Phys. Rev. D 2010
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.83.041301
http://cds.cern.ch/record/1292549
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author Riotto, Antonio
Sloth, Martin S
author_facet Riotto, Antonio
Sloth, Martin S
author_sort Riotto, Antonio
collection CERN
description We discuss models of primordial density perturbations where the non-Gaussianity is strongly scale-dependent. In particular, the non-Gaussianity may have a sharp cut-off and be very suppressed on large cosmological scales, but sizeable on small scales. This may have an impact on probes of non-Gaussianity in the large-scale structure and in the cosmic microwave background radiation anisotropies.
format info:eu-repo/semantics/article
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institution Organización Europea para la Investigación Nuclear
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publisher Phys. Rev. D
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spelling cern-12925492019-09-30T06:29:59Z doi:10.1103/PhysRevD.83.041301 http://cds.cern.ch/record/1292549 eng Riotto, Antonio Sloth, Martin S Strongly Scale-dependent Non-Gaussianity Astrophysics and Astronomy We discuss models of primordial density perturbations where the non-Gaussianity is strongly scale-dependent. In particular, the non-Gaussianity may have a sharp cut-off and be very suppressed on large cosmological scales, but sizeable on small scales. This may have an impact on probes of non-Gaussianity in the large-scale structure and in the cosmic microwave background radiation anisotropies. info:eu-repo/grantAgreement/EC/FP7/237920 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1292549 Phys. Rev. D Phys. Rev. D, (2011) pp. 041301 2010-09-17
spellingShingle Astrophysics and Astronomy
Riotto, Antonio
Sloth, Martin S
Strongly Scale-dependent Non-Gaussianity
title Strongly Scale-dependent Non-Gaussianity
title_full Strongly Scale-dependent Non-Gaussianity
title_fullStr Strongly Scale-dependent Non-Gaussianity
title_full_unstemmed Strongly Scale-dependent Non-Gaussianity
title_short Strongly Scale-dependent Non-Gaussianity
title_sort strongly scale-dependent non-gaussianity
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1103/PhysRevD.83.041301
http://cds.cern.ch/record/1292549
http://cds.cern.ch/record/1292549
work_keys_str_mv AT riottoantonio stronglyscaledependentnongaussianity
AT slothmartins stronglyscaledependentnongaussianity

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