We review the possible mechanisms for the generation of cosmological magnetic fields,
discuss their evolution in an expanding Universe filled with the cosmic plasma and provide a …

In this paper we review air shower data related to the mass composition of cosmic rays
above 1015eV. After explaining the basic relations between air shower observables and the …

Abstract The Pierre Auger Observatory, located on a vast, high plain in western Argentina, is
the world׳ s largest cosmic ray observatory. The objectives of the Observatory are to probe …

Neutrinos are the most elusive particles in the universe, capable of traveling nearly
unimpeded across it. Despite the vast amount of data collected, a long-standing and …

The origin of the highest energy cosmic rays is still unknown. The discovery of their sources
is expected to reveal the workings of the most energetic astrophysical accelerators in the …

The energy spectrum of cosmic rays above 2.5× 10 18 eV, derived from 20 000 events
recorded at the Pierre Auger Observatory, is described. The spectral index γ of the particle …

SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST
ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY …

ABSTRACT Using archival Sloan Digital Sky Survey (SDSS) multi-epoch imaging data
(Stripe 82), we have searched for the tidal disruption of stars by supermassive black holes in …

We investigate the possibility that blazars in the Roma-BZCAT Multifrequency Catalogue of
Blazars (5BZCAT) are sources of the high-energy astrophysical neutrinos detected by the …

This review summarizes recent developments in the understanding of high-energy cosmic
rays. It focuses on galactic and presumably extragalactic particles in the energy range from …