2026-06-27T06:05:22Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/451372023-08-26T17:12:19Zcom_20.500.14352_14col_20.500.14352_15

Arganda, E. Arqueros Martínez, Fernando Blanco Ramos, Francisco García Pinto, Diego Monasor, M. Ortiz Ramis, Montserrat Rosado Vélez, Jaime Vázquez Peñas, José Ramón 2023-06-20T04:17:40Z 2023-06-20T04:17:40Z 2010-03-08 0370-2693 10.1016/j.physletb.2010.02.013 https://hdl.handle.net/20.500.14352/45137 http://dx.doi.org/10.1016/j.physletb.2010.02.013 http://www.sciencedirect.com/ 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 eng https://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España Measurement of the energy spectrum of cosmic rays above 10(18) eV using the Pierre Auger Observatory journal article