Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data

The emergence of the seeds of cosmic structure from a perfect isotropic and homogeneous Universe has not been clearly explained by the standard version of inflationary models. We consider alternative scenarios where the emergence of an anisotropic and inhomogeneous Universe from an initial isotropic...

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Detalles Bibliográficos
Autores principales: Piccirilli, María Pía, León, Gabriel, Landau, Susana Judith
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Astronómicas
alternative scenarios
inflaton field
statistical analysis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/165270
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-165270
record_format dspace
spelling I19-R120-10915-1652702024-04-24T20:07:20Z http://sedici.unlp.edu.ar/handle/10915/165270 Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data Piccirilli, María Pía León, Gabriel Landau, Susana Judith 2014-04 2015 2024-04-24T17:16:32Z en Ciencias Astronómicas alternative scenarios inflaton field statistical analysis The emergence of the seeds of cosmic structure from a perfect isotropic and homogeneous Universe has not been clearly explained by the standard version of inflationary models. We consider alternative scenarios where the emergence of an anisotropic and inhomogeneous Universe from an initial isotropic and homogeneous state can be explained by the of introduction the “self-induced collapse hypothesis”, a scheme in which an internally induced collapse of the wave function of the inflaton field is the mechanism by which inhomogeneities and anisotropies arise at each particular length scale. Our aim is to test these models through statistical analysis comparing them with recent data of the Cosmic Microwave Background and galaxy surveys. This procedure will restrict the value of free parameters and test the viability of each scheme using the results of latest observational experiments. Facultad de Ciencias Astronómicas y Geofísicas Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 215-218
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
alternative scenarios
inflaton field
statistical analysis
spellingShingle Ciencias Astronómicas
alternative scenarios
inflaton field
statistical analysis
Piccirilli, María Pía
León, Gabriel
Landau, Susana Judith
Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
topic_facet Ciencias Astronómicas
alternative scenarios
inflaton field
statistical analysis
description The emergence of the seeds of cosmic structure from a perfect isotropic and homogeneous Universe has not been clearly explained by the standard version of inflationary models. We consider alternative scenarios where the emergence of an anisotropic and inhomogeneous Universe from an initial isotropic and homogeneous state can be explained by the of introduction the “self-induced collapse hypothesis”, a scheme in which an internally induced collapse of the wave function of the inflaton field is the mechanism by which inhomogeneities and anisotropies arise at each particular length scale. Our aim is to test these models through statistical analysis comparing them with recent data of the Cosmic Microwave Background and galaxy surveys. This procedure will restrict the value of free parameters and test the viability of each scheme using the results of latest observational experiments.
format Objeto de conferencia
Objeto de conferencia
author Piccirilli, María Pía
León, Gabriel
Landau, Susana Judith
author_facet Piccirilli, María Pía
León, Gabriel
Landau, Susana Judith
author_sort Piccirilli, María Pía
title Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
title_short Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
title_full Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
title_fullStr Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
title_full_unstemmed Comparison of predictions from alternative cosmologies with Cosmic Microwave Background data
title_sort comparison of predictions from alternative cosmologies with cosmic microwave background data
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/165270
work_keys_str_mv AT piccirillimariapia comparisonofpredictionsfromalternativecosmologieswithcosmicmicrowavebackgrounddata
AT leongabriel comparisonofpredictionsfromalternativecosmologieswithcosmicmicrowavebackgrounddata
AT landaususanajudith comparisonofpredictionsfromalternativecosmologieswithcosmicmicrowavebackgrounddata
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