Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory

Mostrar todas las versiones(2)

A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10 18 eV at the Pierre Auger Observatory is reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the decli...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Multitudinario:513
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_20418205_v762_n1_p_Multitudinario
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_20418205_v762_n1_p_Multitudinario
record_format dspace
spelling todo:paper_20418205_v762_n1_p_Multitudinario2023-10-03T16:38:02Z Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory Multitudinario:513 A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10 18 eV at the Pierre Auger Observatory is reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the declination and expressed in terms of dipole and quadrupole moments. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Upper limits on dipole and quadrupole amplitudes are derived under the hypothesis that any cosmic ray anisotropy is dominated by such moments in this energy range. These upper limits provide constraints on the production of cosmic rays above 10 18 eV, since they allow us to challenge an origin from stationary galactic sources densely distributed in the galactic disk and emitting predominantly light particles in all directions. © 2013. The American Astronomical Society. All rights reserved.. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20418205_v762_n1_p_Multitudinario
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10 18 eV at the Pierre Auger Observatory is reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the declination and expressed in terms of dipole and quadrupole moments. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Upper limits on dipole and quadrupole amplitudes are derived under the hypothesis that any cosmic ray anisotropy is dominated by such moments in this energy range. These upper limits provide constraints on the production of cosmic rays above 10 18 eV, since they allow us to challenge an origin from stationary galactic sources densely distributed in the galactic disk and emitting predominantly light particles in all directions. © 2013. The American Astronomical Society. All rights reserved..
format JOUR
author Multitudinario:513
spellingShingle Multitudinario:513
Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
author_facet Multitudinario:513
author_sort Multitudinario:513
title Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
title_short Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
title_full Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
title_fullStr Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
title_full_unstemmed Constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
title_sort constraints on the origin of cosmic rays above 10 18 ev from large-scale anisotropy searches in data of the pierre auger observatory
url http://hdl.handle.net/20.500.12110/paper_20418205_v762_n1_p_Multitudinario
work_keys_str_mv AT multitudinario513 constraintsontheoriginofcosmicraysabove1018evfromlargescaleanisotropysearchesindataofthepierreaugerobservatory
_version_ 1807320018403196928

Ejemplares similares