Exploring cosmic rays at the highest-energy frontier with the Pierre Auger Observatory
1 Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-859, Campinas SP, Brazil
2 Observatorio Pierre Auger, Av. San Martín Norte, 304, 5613 Malargüe, Argentina
Published online: 29 May 2015
The Pierre Auger Observatory studies the most energetic cosmic rays arriving at Earth, those with energies from 1017 eV up to 1020 eV and beyond. In continuous operation since 2004, the Observatory employs two complementary detection techniques for measuring air showers induced by those extremely energetic particles. For the past few years new detectors and techniques are being added in order to augment the sensitivity of the measurements. Data accumulated in ten years have led to major advances in our knowledge of the origin and nature of cosmic rays. We present a summary of the latest results for the spectrum of cosmic rays, their arrival directions and composition, as well as the challenges for the future operation of the Observatory.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.