TY  - JOUR
AU  - Pierre Auger Collaboration (Abraham, J. et al
AU  - Pastor, S.
PY  - 2010
DA  - 2010//
TI  - Measurement of the energy spectrum of cosmic rays above 10(18) eV using the Pierre Auger Observatory
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 239
EP  - 246
VL  - 685
IS  - 4-5
PB  - Elsevier Science Bv
KW  - Pierre Auger Observatory
KW  - Cosmic rays
KW  - Energy spectrum
AB  - 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.
SN  - 0370-2693
UR  - http://arXiv.org/abs/1002.1975
UR  - https://doi.org/10.1016/j.physletb.2010.02.013
DO  - 10.1016/j.physletb.2010.02.013
LA  - English
N1  - ISI:000275640600003
ID  - PierreAugerCollaborationAbraham+Pastor2010
ER  -