Measurement of the energy spectrum of cosmic rays above 10(18) eV using the Pierre Auger Observatory

By The Pierre Auger Collaboration. 2010

225 citations recorded by the source corpus.

We report a measurement of the flux of cosmic rays with unprecedented precision and Statistics using the Pierre Auger Observatory Based on fluorescence observations in coincidence with at least one Surface detector we derive a spectrum for energies above 10(18) eV We also update the previously published energy spectrum obtained with the surface detector array The two spectra are combined addressing the systematic uncertainties and, in particular. the influence of the energy resolution on the spectral shape The spectrum can be described by a broken power law E-gamma with index gamma = 3 3 below the ankle which is measured at log(10)(E-ankle/eV) = 18 6 Above the ankle the spectrum is described by a power law with index 2 6 followed by a flux suppression, above about log(10)(E/eV) = 19 5, detected with high statistical significance (C) 2010 Elsevier B V All rights reserved

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/81c7c4798fca9d46f4fb6bbe3b31d4a46b1f200b

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In Nuclear and High Energy Physics

1. Tim Huege
2. K. Kampert
3. M. Unger
4. Angela V. Olinto
5. Ralph Engel
6. R. Ulrich
7. P. Sommers
8. A. V. Vliet

Citations in the corpus

• The Pierre Auger Cosmic Ray Observatory (2015, methodology): “An hourly cloud coverage below 20% is required for hybrid events to be used in the analysis of the mass composition and energy spectrum of the cosmic rays [21, 38].”