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Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Composition Implications
Pierre Auger Collaboration
Using the data taken at the Pierre Auger Observatory between December 2004 and December 2012, we have examined the implications of the distributions of depths of atmospheric shower…
A search for point sources of EeV photons
Pierre Auger Collaboration, A. Aab, P. Abreu +483
Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point…
Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
Pierre Auger Collaboration, Gabriele Curci
The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main challenges is the mon…
Asymmetry of the angular distribution of Cherenkov photons of extensive air showers induced by the geomagnetic field
Piotr Homola, Ralph Engel, Henryk Wilczyński
The angular distribution of Cherenkov light in an air shower is closely linked to that of the shower electrons and positrons. As charged particles in extensive air showers are defl…
A method to calibrate the absolute energy scale of air showers with ultra-high energy photons
Piotr Homola, Markus Risse
Calibrating the absolute energy scale of air showers initiated by ultra-high energy cosmic rays is an important experimental issue. Currently, the corresponding systematic uncertai…