The spectrum features of UHECRs below and surrounding GZK
V. P. Egorova, A. V. Glushkov, A. A. Ivanov, S. P. Knurenko, V. A. Kolosov, A. D. Krasilnikov, I. T. Makarov, A. A. Mikhailov, V. V. Olzoev, M. I. Pravdin, A. V. Sabourov, I. Ye. Sleptsov, G. G. Struchkov
Abstract
The energy spectrum of UHECRs is discussed on the basis of the Yakutsk array database analysis. In the region E=0.1 to 30 EeV the showers are detected under trigger-500, while at energies above 30 EeV the whole acceptance area for trigger-1000 is used in order to utilize all the data available in the region of GZK cutoff.
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