Constraints on the origin of cosmic rays above 1018 eV from large scale anisotropy searches in data of the Pierre Auger Observatory
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Constraints on the origin of cosmic rays above 1018 eV from large scale anisotropy searches in data of the Pierre Auger Observatory

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Constraints on the origin of cosmic rays above 1018 eV from large scale anisotropy searches in data of the Pierre Auger Observatory

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dc.contributor.author The Pierre Auger Collaboration
dc.contributor.author Arqueros Martínez, Fernando
dc.contributor.author Gascón Bravo, Alberto
dc.contributor.author Pastor Carpi, Sergio
dc.contributor.author Rosado Vélez, Jaime
dc.contributor.author Vázquez Peñas, José Ramón
dc.contributor.author Zamorano García, Bruno
dc.date.accessioned 2014-02-19T11:20:51Z
dc.date.available 2014-02-19T11:20:51Z
dc.date.issued 2013
dc.identifier.uri http://dx.doi.org/10.1088/2041-8205/762/1/L13
dc.identifier.uri http://hdl.handle.net/10550/33089
dc.description.abstract A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10 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 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.
dc.relation.ispartof Astrophysical Journal Letters, 2013, vol. 762, p. L13-1-L13-8
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Pastor Carpi, Sergio Arqueros Martinez, Fernando Gascón Bravo, Alberto Rosado Velez, Jaime Vázquez Peñas, José Ramón Zamorano García, Bruno 2013 Constraints on the origin of cosmic rays above 1018 eV from large scale anisotropy searches in data of the Pierre Auger Observatory Astrophysical Journal Letters 762 L13-1 L13-8
dc.subject Física
dc.title Constraints on the origin of cosmic rays above 1018 eV from large scale anisotropy searches in data of the Pierre Auger Observatory
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-02-19T11:20:51Z
dc.identifier.doi http://dx.doi.org/10.1088/2041-8205/762/1/L13
dc.identifier.idgrec 093578

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