Measurement of the Flux of Ultrahigh Energy Cosmic Rays from Monocular Observations by the High Resolution Fly’s Eye Experiment

R. U. Abbasi et al. (High Resolution Fly’s Eye Collaboration)
Phys. Rev. Lett. 92, 151101 – Published 15 April 2004

Abstract

We have measured the cosmic ray spectrum above 1017.2   eV using the two air-fluorescence detectors of the High Resolution Fly’s Eye observatory operating in monocular mode. We describe the detector, phototube, and atmospheric calibrations, as well as the analysis techniques for the two detectors. We fit the spectrum to a model consisting of galactic and extragalactic sources.

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  • Received 12 August 2002

DOI:https://doi.org/10.1103/PhysRevLett.92.151101

©2004 American Physical Society

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Vol. 92, Iss. 15 — 16 April 2004

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