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Large scale distribution of ultra high energy cosmic rays detected at the Pierre Auger Observatory with zenith angles up to 80
The Pierre Auger Collaboration
We present the results of an analysis of the large angular scale distribution of the arrival directions of cosmic rays with energy above 4 EeV detected at the Pierre Auger Observat…
Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory
The Pierre Auger Collaboration
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-ener…
Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Measurements at Energies above 10^17.8 eV
Pierre Auger Collaboration
We report a study of the distributions of the depth of maximum, Xmax, of extensive air-shower profiles with energies above 10^17.8 eV as observed with the fluorescence telescopes o…
Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events
Pierre Auger Collaboration
We present the first hybrid measurement of the average muon number in air showers at ultra-high energies, initiated by cosmic rays with zenith angles between and $80^\ci…
Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth
Pierre Auger Collaboration
The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timin…
Probing the radio emission from air showers with polarization measurements
Pierre Auger Collaboration
The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiatio…