Energy Spectrum of Ultrahigh-Energy Cosmic Rays according to Data from Ground-Based Scintillation Detectors of the Yakutsk EAS Array

Journal Article · Sat Sep 15 00:00:00 EDT 2018 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S106377881804004X· OSTI ID:22761702

Pravdin, M. I.; Saburov, A. V. ^[1]

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1. Russian Academy of Sciences, Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch (Russian Federation)

Results obtained from an analysis of the energy spectrum of cosmic rays with energies in the region of E{sub 0} ≥ 10{sup 17} eV over the period of continuous observations from 1974 to 2017 are presented. A refined expression for estimating the primary-particle energy is used for individual events. This expression is derived from calculations aimed at determining the responses of the ground-based and underground scintillation detectors of the Yakutsk array for studying extensive air showers (EAS) and performed within theQGSJET-01-d, QGSJET-II-04, SIBYLL-2.1, and EPOS-LHCmodels by employing the CORSIKA code package. The new estimate of E{sub 0} is substantially lower than its counterpart used earlier.

• OSTI ID: 22761702
• Journal Information: Physics of Atomic Nuclei, Vol. 81, Issue 5; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
C CODES
COSMIC RADIATION
ENERGY SPECTRA
EXTENSIVE AIR SHOWERS
PARTICLES
SCINTILLATION COUNTERS
UNDERGROUND