Most precise measurement of the cosmic-ray energy spectrum at ultra-high energies

Recently, the Pierre Auger Collaboration has presented the most precise measurement of the cosmic-ray (CR) energy spectrum at ultra-high energies using the events recorded over more than 14 years by the surface detector (SD).

Cosmic-ray anisotropies in right ascension

In a recent publication, the Pierre Auger Observatory has presented measurements of the large-scale cosmic-ray (CR) anisotropies in right ascension.

Directional sensitivity of the Pierre Auger Observatory to sources of UHE neutrinos

In the second paper of a series of two devoted to the search for Ultra-High Energy (UHE) neutrinos at the Pierre Auger Observatory, the Pierre Auger Collaboration has addressed the sensitivity of the Surface Detector array (SD) to steady and transient point sources of UHE neutrinos as a function of declination.

A new method for the estimation of the "invisible" energy

This data-based method Improves the accuracy on the determination of the energy of cosmic rays with the Pierre Auger Observatory by 5%.

Constraining the sources of UHECR with neutrinos

Most stringent limits so far to the diffuse flux of UHE neutrinos in the EeV energy range.

Getting insights into the measured dipolar anisotropy

The Pierre Auger Collaboration measured a dipolar anisotropy in the arrival-direction distribution of the cosmic rays with energies in excess of 8x1018 eV, finding that the flux is about
6.5% larger than the average in one direction of the sky and it is correspondingly smaller in the opposite direction.

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