The energy spectrum of cosmic rays beyond the turn-down around 1017 eV as measured with the surface detector of the Pierre Auger Observatory

Pierre Auger Collaboration

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

We present a measurement of the cosmic-ray spectrum above 100 PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, confirming the presence of the so-called second-knee feature. The spectrum is then combined with that of the 1500 m array to produce a single measurement of the flux, linking this spectral feature with the three additional breaks at the highest energies. The combined spectrum, with an energy scale set calorimetrically via fluorescence telescopes and using a single detector type, results in the most statistically and systematically precise measurement of spectral breaks yet obtained. These measurements are critical for furthering our understanding of the highest energy cosmic rays.

Idioma originalInglés
Número de artículo966
PublicaciónEuropean Physical Journal C
Volumen81
N.º11
DOI
EstadoPublicada - nov 2021

Tipos de productos de Colciencias

  • Artículo A1 - Q1

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Profundice en los temas de investigación de 'The energy spectrum of cosmic rays beyond the turn-down around 10<sup>17</sup> eV as measured with the surface detector of the Pierre Auger Observatory'. En conjunto forman una huella única.

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