The time variation of the fine structure constant: A statistical analysis of astronomical data

Autores
Landau, S.J.; Simeone, C.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Aims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this selection is proposed.Results. Results show consistency for reduced intervals for each pair of data sets considered.Conclusions. Results are at variance with the ones obtained considering mean values over the whole interval. © 2008 ESO.
Fil:Landau, S.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Simeone, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Astron. Astrophys. 2008;487(3):857-863
Materia
Cosmology: miscellaneous
Cosmology: observations
Quasars: absorption lines
Financial data processing
Ketones
Astronomical data
Confidence intervals
Cosmology: miscellaneous
Cosmology: observations
Data sets
Fine structure constants
Mean values
Quasars: absorption lines
Statistical analysis
Time variations
Testing
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00046361_v487_n3_p857_Landau
Acceder
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oai_identifier_str paperaa:paper_00046361_v487_n3_p857_Landau
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling The time variation of the fine structure constant: A statistical analysis of astronomical dataLandau, S.J.Simeone, C.Cosmology: miscellaneousCosmology: observationsQuasars: absorption linesFinancial data processingKetonesAstronomical dataConfidence intervalsCosmology: miscellaneousCosmology: observationsData setsFine structure constantsMean valuesQuasars: absorption linesStatistical analysisTime variationsTestingAims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this selection is proposed.Results. Results show consistency for reduced intervals for each pair of data sets considered.Conclusions. Results are at variance with the ones obtained considering mean values over the whole interval. © 2008 ESO.Fil:Landau, S.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Simeone, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00046361_v487_n3_p857_LandauAstron. Astrophys. 2008;487(3):857-863reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:43:09Zpaperaa:paper_00046361_v487_n3_p857_LandauInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:43:10.381Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv The time variation of the fine structure constant: A statistical analysis of astronomical data
title The time variation of the fine structure constant: A statistical analysis of astronomical data
spellingShingle The time variation of the fine structure constant: A statistical analysis of astronomical data
Landau, S.J.
Cosmology: miscellaneous
Cosmology: observations
Quasars: absorption lines
Financial data processing
Ketones
Astronomical data
Confidence intervals
Cosmology: miscellaneous
Cosmology: observations
Data sets
Fine structure constants
Mean values
Quasars: absorption lines
Statistical analysis
Time variations
Testing
title_short The time variation of the fine structure constant: A statistical analysis of astronomical data
title_full The time variation of the fine structure constant: A statistical analysis of astronomical data
title_fullStr The time variation of the fine structure constant: A statistical analysis of astronomical data
title_full_unstemmed The time variation of the fine structure constant: A statistical analysis of astronomical data
title_sort The time variation of the fine structure constant: A statistical analysis of astronomical data
dc.creator.none.fl_str_mv Landau, S.J.
Simeone, C.
author Landau, S.J.
author_facet Landau, S.J.
Simeone, C.
author_role author
author2 Simeone, C.
author2_role author
dc.subject.none.fl_str_mv Cosmology: miscellaneous
Cosmology: observations
Quasars: absorption lines
Financial data processing
Ketones
Astronomical data
Confidence intervals
Cosmology: miscellaneous
Cosmology: observations
Data sets
Fine structure constants
Mean values
Quasars: absorption lines
Statistical analysis
Time variations
Testing
topic Cosmology: miscellaneous
Cosmology: observations
Quasars: absorption lines
Financial data processing
Ketones
Astronomical data
Confidence intervals
Cosmology: miscellaneous
Cosmology: observations
Data sets
Fine structure constants
Mean values
Quasars: absorption lines
Statistical analysis
Time variations
Testing
dc.description.none.fl_txt_mv Aims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this selection is proposed.Results. Results show consistency for reduced intervals for each pair of data sets considered.Conclusions. Results are at variance with the ones obtained considering mean values over the whole interval. © 2008 ESO.
Fil:Landau, S.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Simeone, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Aims. We analyze different data of the variation of the fine structure constant obtained with different methods to check their consistency.Methods. We test consistency using the modified student test and confidence intervals. We split the data sets into smaller intervals. A criterion for this selection is proposed.Results. Results show consistency for reduced intervals for each pair of data sets considered.Conclusions. Results are at variance with the ones obtained considering mean values over the whole interval. © 2008 ESO.
publishDate 2008
dc.date.none.fl_str_mv 2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/20.500.12110/paper_00046361_v487_n3_p857_Landau
url http://hdl.handle.net/20.500.12110/paper_00046361_v487_n3_p857_Landau
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Astron. Astrophys. 2008;487(3):857-863
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 13.070432

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