info:eu-repo/semantics/article
Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory
Fecha
2015-06-20Registro en:
Aab, A.; Abreu, P.; Aglietta, M.; Ahn, E. J.; Al Samarai, I.; et al.; Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory; Springer; European Physical Journal C: Particles And Fields; 75; 269; 20-6-2015; 269-284
1434-6044
CONICET Digital
CONICET
Autor
Aab, A.
Abreu, P.
Aglietta, M.
Ahn, E. J.
Al Samarai, I.
Albuquerque, I. F. M.
Allekotte, Ingomar
Allen, J.
Allison, P.
Almela, Daniel Alejandro
Alvarez Castillo, J.
Alvarez Muñiz, J.
Alves Batista, R.
Ambrosio, M.
Aminaei, A.
Rovero, Adrian Carlos
Bertou, Xavier Pierre Louis
Josebachuili Ogando, Mariela Gisele
Jarne, Cecilia Gisele
Gomez Berisso, Mariano
Martins Dos Santos, Eva Maria
Wahlberg, Hernan Pablo
Purrello, Víctor Hugo
Sciutto, Sergio Juan
Quel, Eduardo Jaime
Ravignani Guerrero, Diego
Figueira, Juan Manuel
Micheletti, Maria Isabel
Supanitsky, Alberto Daniel
Platino, Manuel
Resumen
Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with E≥6×1019 eV by analyzing cosmic rays with energies above E≥5×1018 eV arriving within an angular separation of approximately 15∘. We characterize the energy distributions inside these regions by two independent methods, one searching for angular dependence of energy-energy correlations and one searching for collimation of energy along the local system of principal axes of the energy distribution. No significant patterns are found with this analysis. The comparison of these measurements with astrophysical scenarios can therefore be used to obtain constraints on related model parameters such as strength of cosmic-ray deflection and density of point sources.