Energy spectrum of cosmic rays measured using the Pierre Auger Observatory

Pierre Augerb Collaboration

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We present the energy spectrum of cosmic rays measured at the Pierre Auger Observatory from 6 × 1015 eV up to the most extreme energies where the accumulated exposure reaches about 80 000 km2 sr yr. The wide energy range is covered with five different data sets: events detected by the surface detector (with separate reconstruction methods for zenith angles below and above 60), those collected by a denser array, a set of hybrid events simultaneously recorded by the surface and fluorescence detectors, and those events in which the signal is dominated by Cherenkov light registered by the high-elevation telescopes. In this contribution, we report updates of the analysis techniques and present the spectrum obtained by combining the five different measurements. Spectral features occurring in the wide energy range covered by the Observatory are discussed.

Idioma originalInglés
Número de artículo324
PublicaciónProceedings of Science
EstadoPublicada - 18 mar. 2022
Evento37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Alemania
Duración: 12 jul. 202123 jul. 2021

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