We present the first hybrid measurement of the average muon number in air showers at
ultrahigh energies, initiated by cosmic rays with zenith angles between 62° and 80°. 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 …

We present the first measurement of the fluctuations in the number of muons in extensive air
showers produced by ultrahigh energy cosmic rays. We find that the measured fluctuations …

An overview of the multi-messenger capabilities of the Pierre Auger Observatory is
presented. The techniques and performance of searching for Ultra-High Energy neutrinos …

The intensity of cosmic rays with energies above∼ 1014 eV is only a few particles per
square meter per day and thus too low to allow for direct measurement with satisfactory …

The Pierre Auger Observatory is the world's largest operating detection system for the
observation of ultra high energy cosmic rays (UHECRs), with energies above 10 17 eV. The …

The Pierre Auger Observatory, located in western Argentina, is the world's largest cosmicray
Observatory [1]. The objectives of the Observatory are to probe the origin and characteristics …

With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have
observed the radio emission from 561 extensive air showers with zenith angles between 60◦ …

The Auger Engineering Radio Array (AERA), part of the Pierre Auger Observatory, is
currently the largest array of radio antenna stations deployed for the detection of cosmic …

The detection of inclined air showers (zenith angles θ≳ 65) with kilometer-spaced radio-
antenna arrays allows measuring cosmic rays at ultra-high energies (E≲ 10 20 eV). Radio …