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Implications of the cosmic ray spectrum for the mass composition at the highest energies
D. Allard, N. G Busca, G. Decerprit +2
The significant attenuation of the cosmic-ray flux above eV suggests that the observed high-energy spectrum is shaped by the so-called GZK effect. This interaction…
Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei
The Pierre Auger Collaboration
Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the highest energies, which are correlated with the…
The GZK horizon and constraints on the cosmic ray source spectrum from observations in the GZK regime
M. Kachelriess, E. Parizot, D. V. Semikoz
We discuss the GZK horizon of protons and present a method to constrain the injection spectrum of ultrahigh energy cosmic rays (UHECRs) from supposedly identified extragalactic sou…
The Pierre Auger Observatory: status, results and perspective
E. Parizot
While the completion of the Pierre Auger Observatory (or simply ``Auger'') is still underway, the 5165 km^2.sr.yr integrated acceptance accumulated since the January 1st, 2004 is n…
Propagation of high-energy cosmic rays in extragalactic turbulent magnetic fields: resulting energy spectrum and composition
N. Globus, D. Allard, E. Parizot
We extend previous studies of mixed-composition extragalactic cosmic-ray source models, by investigating the influence of a non-negligible extragalactic magnetic field on the propa…
Signatures of the extragalactic cosmic-ray source composition from spectrum and shower depth measurements
D. Allard, A. V. Olinto, E. Parizot
We discuss the differences induced by the assumed composition of extragalactic sources on the predicted UHECR spectrum and the energy evolution of , i.e. the mean value…