Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory

Autores: Badagnani, Daniel Omar; Dova, María Teresa; Gómez Albarracín, Flavia Alejandra; Hansen, Patricia María; Mariazzi, Analisa Gabriela; Moreno, Juan Cruz; Sciutto, Sergio Juan; Tarutina, Tatiana; Tueros, Matías Jorge; Wahlberg, Hernán Pablo; The Pierre Auger Collaboration
Año de publicación: 2010
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one surface detector we derive a spectrum for energies above 10¹⁸ eV. We also update the previously published energy spectrum obtained with the surface detector array. The two spectra are combined addressing the systematic uncertainties and, in particular, the influence of the energy resolution on the spectral shape. The spectrum can be described by a broken power law E^−γ with index γ = 3.3 below the ankle which is measured at log₁₀(E_ankle/eV) = 18.6. Above the ankle the spectrum is described by a power law with index 2.6 followed by a flux suppression, above about log₁₀(E/eV) = 19.5, detected with high statistical significance.
Facultad de Ciencias Exactas
Materia: Ciencias Exactas
Física
Radiación Cósmica
Fluorescencia
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/79999

Acceder

id	SEDICI_010ae3f87e8129b37f61116320a3b54c
oai_identifier_str	oai:sedici.unlp.edu.ar:10915/79999
network_acronym_str	SEDICI
repository_id_str	1329
network_name_str	SEDICI (UNLP)
spelling	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger ObservatoryBadagnani, Daniel OmarDova, María TeresaGómez Albarracín, Flavia AlejandraHansen, Patricia MaríaMariazzi, Analisa GabrielaMoreno, Juan CruzSciutto, Sergio JuanTarutina, TatianaTueros, Matías JorgeWahlberg, Hernán PabloThe Pierre Auger CollaborationCiencias ExactasFísicaRadiación CósmicaFluorescenciaWe report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one surface detector we derive a spectrum for energies above 10<sup>18</sup> eV. We also update the previously published energy spectrum obtained with the surface detector array. The two spectra are combined addressing the systematic uncertainties and, in particular, the influence of the energy resolution on the spectral shape. The spectrum can be described by a broken power law E<sup>−γ</sup> with index γ = 3.3 below the ankle which is measured at log<sub>10</sub>(E<sub>ankle</sub>/eV) = 18.6. Above the ankle the spectrum is described by a power law with index 2.6 followed by a flux suppression, above about log<sub>10</sub>(E/eV) = 19.5, detected with high statistical significance.Facultad de Ciencias Exactas2010-02-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf239-246http://sedici.unlp.edu.ar/handle/10915/79999enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2010.02.013info: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:UNLP2025-09-03T10:43:58Zoai:sedici.unlp.edu.ar:10915/79999Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:43:58.629SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
title	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
spellingShingle	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory Badagnani, Daniel Omar Ciencias Exactas Física Radiación Cósmica Fluorescencia
title_short	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
title_full	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
title_fullStr	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
title_full_unstemmed	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
title_sort	Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory
dc.creator.none.fl_str_mv	Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration
author	Badagnani, Daniel Omar
author_facet	Badagnani, Daniel Omar Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration
author_role	author
author2	Dova, María Teresa Gómez Albarracín, Flavia Alejandra Hansen, Patricia María Mariazzi, Analisa Gabriela Moreno, Juan Cruz Sciutto, Sergio Juan Tarutina, Tatiana Tueros, Matías Jorge Wahlberg, Hernán Pablo The Pierre Auger Collaboration
author2_role	author author author author author author author author author author
dc.subject.none.fl_str_mv	Ciencias Exactas Física Radiación Cósmica Fluorescencia
topic	Ciencias Exactas Física Radiación Cósmica Fluorescencia
dc.description.none.fl_txt_mv	We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one surface detector we derive a spectrum for energies above 10<sup>18</sup> eV. We also update the previously published energy spectrum obtained with the surface detector array. The two spectra are combined addressing the systematic uncertainties and, in particular, the influence of the energy resolution on the spectral shape. The spectrum can be described by a broken power law E<sup>−γ</sup> with index γ = 3.3 below the ankle which is measured at log<sub>10</sub>(E<sub>ankle</sub>/eV) = 18.6. Above the ankle the spectrum is described by a power law with index 2.6 followed by a flux suppression, above about log<sub>10</sub>(E/eV) = 19.5, detected with high statistical significance. Facultad de Ciencias Exactas
description	We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one surface detector we derive a spectrum for energies above 10<sup>18</sup> eV. We also update the previously published energy spectrum obtained with the surface detector array. The two spectra are combined addressing the systematic uncertainties and, in particular, the influence of the energy resolution on the spectral shape. The spectrum can be described by a broken power law E<sup>−γ</sup> with index γ = 3.3 below the ankle which is measured at log<sub>10</sub>(E<sub>ankle</sub>/eV) = 18.6. Above the ankle the spectrum is described by a power law with index 2.6 followed by a flux suppression, above about log<sub>10</sub>(E/eV) = 19.5, detected with high statistical significance.
publishDate	2010
dc.date.none.fl_str_mv	2010-02-10
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/10915/79999
url	http://sedici.unlp.edu.ar/handle/10915/79999
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2010.02.013
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 239-246
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
_version_	1842260311397105664
score	13.13397

Measurement of the energy spectrum of cosmic rays above 10<sup>18</sup> eV using the Pierre Auger Observatory

Publicaciones similares