IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Constraints on the origin of cosmic rays from large scale anisotropy searches in data of the Pierre Auger Observatory
Autor/es:
THE PIERRE AUGER COLLABORATION.; S. J. SCIUTTO
Lugar:
Rio de Janeiro
Reunión:
Conferencia; 33rd International Cosmic Ray Conference; 2013
Institución organizadora:
International Union of Pure and Applied Physics (IUPAP)
Resumen:
We update a search for large scale anisotropies in the distribution of arrival directions of cosmicrays detected above 1018 eV at the Pierre Auger Observatory as a function of both the right ascension and thedeclination. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Upper limits ondipole and quadrupole amplitudes are updated under the hypothesis that any cosmic ray anisotropy is dominatedby such moments in this energy range. These upper limits provide constraints on the production of cosmic raysabove 1018 eV, since they allow us to challenge an origin from stationary galactic sources densely distributed inthe galactic disk and emitting predominantly light particles in all directions.
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