Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology

A recently proposed mechanism for large-scale structure in string cosmology --based on massless axionic seeds-- is further analyzed and extended to the acoustic-peak region. Existence, structure, and normalization of the peaks turn out to depend crucially on the overall evolution of extra dimensions...

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Detalles Bibliográficos
Autores principales: Melchiorri, A., Vernizzi, F., Durrer, R., Veneziano, G.
Lenguaje:eng
Publicado: 1999
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.83.4464
http://cds.cern.ch/record/388404
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author Melchiorri, A.
Vernizzi, F.
Durrer, R.
Veneziano, G.
author_facet Melchiorri, A.
Vernizzi, F.
Durrer, R.
Veneziano, G.
author_sort Melchiorri, A.
collection CERN
description A recently proposed mechanism for large-scale structure in string cosmology --based on massless axionic seeds-- is further analyzed and extended to the acoustic-peak region. Existence, structure, and normalization of the peaks turn out to depend crucially on the overall evolution of extra dimensions during the pre-big bang phase: conversely, precise cosmic microwave background anisotropy data in the acoustic-peak region will provide, within the next decade, a window on string-theory's extra dimensions before their eventual compactification.
id cern-388404
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-3884042023-03-14T16:59:01Zdoi:10.1103/PhysRevLett.83.4464http://cds.cern.ch/record/388404engMelchiorri, A.Vernizzi, F.Durrer, R.Veneziano, G.Cosmic Microwave Background anisotropies and extra dimensions in String CosmologyAstrophysics and AstronomyA recently proposed mechanism for large-scale structure in string cosmology --based on massless axionic seeds-- is further analyzed and extended to the acoustic-peak region. Existence, structure, and normalization of the peaks turn out to depend crucially on the overall evolution of extra dimensions during the pre-big bang phase: conversely, precise cosmic microwave background anisotropy data in the acoustic-peak region will provide, within the next decade, a window on string-theory's extra dimensions before their eventual compactification.A recently proposed mechanism for large-scale structure in string cosmology --based on massless axionic seeds-- is further analyzed and extended to the acoustic-peak region. Existence, structure, and normalization of the peaks turn out to depend crucially on the overall evolution of extra dimensions during the pre-big bang phase: conversely, precise cosmic microwave background anisotropy data in the acoustic-peak region will provide, within the next decade, a window on string-theory's extra dimensions before their eventual compactification.astro-ph/9905327oai:cds.cern.ch:3884041999
spellingShingle Astrophysics and Astronomy
Melchiorri, A.
Vernizzi, F.
Durrer, R.
Veneziano, G.
Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title_full Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title_fullStr Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title_full_unstemmed Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title_short Cosmic Microwave Background anisotropies and extra dimensions in String Cosmology
title_sort cosmic microwave background anisotropies and extra dimensions in string cosmology
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1103/PhysRevLett.83.4464
http://cds.cern.ch/record/388404
work_keys_str_mv AT melchiorria cosmicmicrowavebackgroundanisotropiesandextradimensionsinstringcosmology
AT vernizzif cosmicmicrowavebackgroundanisotropiesandextradimensionsinstringcosmology
AT durrerr cosmicmicrowavebackgroundanisotropiesandextradimensionsinstringcosmology
AT venezianog cosmicmicrowavebackgroundanisotropiesandextradimensionsinstringcosmology

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