WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario

Autores
Scóccola, Claudia Graciela; Landau, Susana Judith; Vucetich, Héctor
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass me in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Astronomía
Variation of fundamental constants
Cosmic microwave background
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/93587
Acceder
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network_name_str SEDICI (UNLP)
spelling WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenarioScóccola, Claudia GracielaLandau, Susana JudithVucetich, HéctorAstronomíaVariation of fundamental constantsCosmic microwave backgroundWe study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m<sub>e</sub> in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf212-216http://sedici.unlp.edu.ar/handle/10915/93587enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269308012136?via%3Dihubinfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/44864info:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2008.09.051info:eu-repo/semantics/altIdentifier/hdl/11336/44864info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93587Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:27.148SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
title WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
spellingShingle WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
Scóccola, Claudia Graciela
Astronomía
Variation of fundamental constants
Cosmic microwave background
title_short WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
title_full WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
title_fullStr WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
title_full_unstemmed WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
title_sort WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
dc.creator.none.fl_str_mv Scóccola, Claudia Graciela
Landau, Susana Judith
Vucetich, Héctor
author Scóccola, Claudia Graciela
author_facet Scóccola, Claudia Graciela
Landau, Susana Judith
Vucetich, Héctor
author_role author
author2 Landau, Susana Judith
Vucetich, Héctor
author2_role author
author
dc.subject.none.fl_str_mv Astronomía
Variation of fundamental constants
Cosmic microwave background
topic Astronomía
Variation of fundamental constants
Cosmic microwave background
dc.description.none.fl_txt_mv We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m<sub>e</sub> in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m<sub>e</sub> in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/93587
url http://sedici.unlp.edu.ar/handle/10915/93587
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269308012136?via%3Dihub
info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/handle/11336/44864
info:eu-repo/semantics/altIdentifier/issn/0370-2693
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2008.09.051
info:eu-repo/semantics/altIdentifier/hdl/11336/44864
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
212-216
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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