Testing the DGP model with ESSENCE

We use the recent supernova data set from the ESSENCE collaboration combined with data from the Supernova Legacy Survey and nearby supernovae to test the DGP brane world model and its generalisations. Combination of this data with a flatness prior and the position of the peak of the CMB disfavours t...

Descripción completa

Detalles Bibliográficos
Autores principales: Rydbeck, Sara, Fairbairn, Malcolm, Goobar, Ariel
Lenguaje:eng
Publicado: 2007
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1088/1475-7516/2007/05/003
http://cds.cern.ch/record/1010604
_version_ 1780911869873094656
author Rydbeck, Sara
Fairbairn, Malcolm
Goobar, Ariel
author_facet Rydbeck, Sara
Fairbairn, Malcolm
Goobar, Ariel
author_sort Rydbeck, Sara
collection CERN
description We use the recent supernova data set from the ESSENCE collaboration combined with data from the Supernova Legacy Survey and nearby supernovae to test the DGP brane world model and its generalisations. Combination of this data with a flatness prior and the position of the peak of the CMB disfavours the DGP model slightly, although does not rule it out significantly. Inclusion of the baryon acoustic peak from the Sloan Digital Sky Survey would rule out the DGP model at the 3-sigma level, although it is not clear how self consistent this procedure would be without a re-analysis of the survey data in the framework of the DGP cosmology. Generalisations of the DGP model are tested and constraints on relevant parameters obtained.
id cern-1010604
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10106042021-07-15T23:59:53Zdoi:10.1088/1475-7516/2007/05/003http://cds.cern.ch/record/1010604engRydbeck, SaraFairbairn, MalcolmGoobar, ArielTesting the DGP model with ESSENCEAstrophysics and AstronomyWe use the recent supernova data set from the ESSENCE collaboration combined with data from the Supernova Legacy Survey and nearby supernovae to test the DGP brane world model and its generalisations. Combination of this data with a flatness prior and the position of the peak of the CMB disfavours the DGP model slightly, although does not rule it out significantly. Inclusion of the baryon acoustic peak from the Sloan Digital Sky Survey would rule out the DGP model at the 3-sigma level, although it is not clear how self consistent this procedure would be without a re-analysis of the survey data in the framework of the DGP cosmology. Generalisations of the DGP model are tested and constraints on relevant parameters obtained.We use the recent supernova data set from the ESSENCE collaboration combined with data from the Supernova Legacy Survey and nearby supernovae to test the DGP brane world model and its generalisations. Combination of this data with a flatness prior and the position of the peak of the CMB disfavours the DGP model slightly. Inclusion of the baryon acoustic peak from the Sloan Digital Sky Survey increase the tension of the DGP model with the data, although it is not clear how self consistent this procedure would be without a re-analysis of the survey data in the framework of the DGP cosmology. Generalisations of the DGP model are tested and constraints on relevant parameters obtained.astro-ph/0701495oai:cds.cern.ch:10106042007-01-17
spellingShingle Astrophysics and Astronomy
Rydbeck, Sara
Fairbairn, Malcolm
Goobar, Ariel
Testing the DGP model with ESSENCE
title Testing the DGP model with ESSENCE
title_full Testing the DGP model with ESSENCE
title_fullStr Testing the DGP model with ESSENCE
title_full_unstemmed Testing the DGP model with ESSENCE
title_short Testing the DGP model with ESSENCE
title_sort testing the dgp model with essence
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1088/1475-7516/2007/05/003
http://cds.cern.ch/record/1010604
work_keys_str_mv AT rydbecksara testingthedgpmodelwithessence
AT fairbairnmalcolm testingthedgpmodelwithessence
AT goobarariel testingthedgpmodelwithessence

Ejemplares similares