Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory

A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory is presented. This search is performed as a function of both declination and right ascension in several energy ranges...

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Autores principales: Arganda Carreras, Ernesto, Dova, María Teresa, Gómez Albarracín, Flavia Alejandra, Hansen, Patricia María, Jarne, Cecilia Gisele, Mariazzi, Analisa Gabriela, Moreno, Juan Cruz, Sciutto, Sergio Juan, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
Astroparticle physics
Radiación Cósmica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80841
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80841
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Astroparticle physics
Radiación Cósmica
spellingShingle Ciencias Exactas
Física
Astroparticle physics
Radiación Cósmica
Arganda Carreras, Ernesto
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
topic_facet Ciencias Exactas
Física
Astroparticle physics
Radiación Cósmica
description A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory is presented. This search is performed as a function of both declination and right ascension in several energy ranges above 10<sup>18</sup> eV, and reported in terms of dipolar and quadrupolar coefficients. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Assuming that any cosmic-ray anisotropy is dominated by dipole and quadrupole moments in this energy range, upper limits on their amplitudes are derived. These upper limits allow us to test the origin of cosmic rays above 1018 eV from stationary Galactic sources densely distributed in the Galactic disk and predominantly emitting light particles in all directions.
format Articulo
Articulo
author Arganda Carreras, Ernesto
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_facet Arganda Carreras, Ernesto
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_sort Arganda Carreras, Ernesto
title Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
title_short Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
title_full Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
title_fullStr Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
title_full_unstemmed Large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> eV at the Pierre Auger Observatory
title_sort large-scale distribution of arrival directions of cosmic rays detected above 10<sup>18</sup> ev at the pierre auger observatory
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/80841
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