Anisotropy studies with the Pierre Auger Observatory

Abstract

Recent results from the Pierre Auger Observatory about anisotropies in the arrival directions of ultra-high energy cosmic rays are reported. In the EeV energy range, we present the results of a search for a large scale dipolar anisotropy pattern. In the same energy range, we show the results of a search for localized excesses of cosmic ray neutrons. For cosmic rays with energies above 20 EeV, we discuss the results of the search for multiplets of aligned events. Finally, we present an update on the search for correlations between events with energy above 55 EeV and the positions of active galactic nuclei from the Véron-Cetty and Véron catalog. The results of a study of the region around Centaurus A are also shown.