Studies of clustering in the arrival directions of cosmic rays detected at the Pierre Auger Observatory above 10 EeV.

PIERRE AUGER COLLABORATION (S. MOLLERACH, L. EPELE ET AL.)

Merida, Mexico

Conferencia; 30th International Cosmic Ray Conference; 2007

The clustering properties of the arrival directions of ultra high energy cosmic rays encode important information to determine their origin, composition, and to constrain galactic and extragalactic magnetic fields. We present here the results of a variety of analyses of data from the Pierre Auger Observatoryas a function of the angular scale and the energy threshold. We compare our results with the signals found by previous experiments.