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Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory


The Pierre Auger Collaboration has investigated the constraining power of the cosmic ray spectrum and composition measurements with respect to the properties of the possible sources.

Search for photons above 10^18 eV with the hybrid detector of the Pierre Auger Observatory


The Pierre Auger Collaboration has searched for the possible presence of photons with energies exceeding 1018 eV in the flux of cosmic rays arriving at Earth.

Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger Observatory

When an ultrahigh-energy cosmic ray impacts the Earth’s atmosphere, it can generate an enormous cascade of billions of energetic particles capable of reaching the ground.

Search for photon point sources at the Pierre Auger Observatory

One of the most pressing mysteries in astroparticle physics is the composition and origin of cosmic rays at energies around 1 EeV = 1018 eV.

A Search for Ultrahigh-Energy Neutrinos in Auger data in Coincidence with Gravitational Waves

100 years after their prediction by Albert Einstein, Gravitational Waves (GW) were detected in 2015 by the LIGO detectors.

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