Status and recent results from the Pierre Auger Observatory
J. R. T. de Mello Neto (for the Pierre Auger Collaboration)
TL;DR
This paper reports recent findings from the Pierre Auger Observatory, including the cosmic ray energy spectrum, mass composition, photon fraction limits, and anisotropy searches, advancing understanding of ultra-high-energy cosmic rays.
Contribution
It provides updated measurements and analysis of cosmic ray properties, including spectrum, composition, and anisotropies, from the Pierre Auger Observatory.
Findings
Observation of spectrum steepening at high energies
Constraints on primary photon fraction
Searches for anisotropies in cosmic ray arrival directions
Abstract
We present the status and the recent measurements from the Pierre Auger Observatory. The energy spectrum will be described and its steepening discussed. The mass composition is addressed with the measurements of the variation of the depth of shower maximum with energy. We also report on upper limits in the primary photon fraction. And finally, searches for anisotropies of cosmic rays arrival directions are reported.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Dark Matter and Cosmic Phenomena · Particle Detector Development and Performance