Measurement of the energy spectrum of cosmic rays above 3 x 10^17 eV using the AMIGA infill detector of the Pierre Auger Observatory

THE PIERRE AUGER COLLABORATION.; S. J. SCIUTTO

Conferencia; 33rd International Cosmic Ray Conference; 2013

We present a measurement of the cosmic ray energy spectrum above 31017 eV based on dataobtained with the 750m surface detector array of the Pierre Auger Observatory. We address the steps required tomeasure the energy spectrum, from the reconstruction of events, through the precise determination of the exposureof the array, up to the determination of the cosmic ray energy. The derived energy spectrum is discussed, and it iscompared to those measured by other instruments in the overlapping energy regions.