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

Preprint

4 June 2003

preprint
Published by arXiv in arXiv

Abstract

We have measured the cosmic ray spectrum above 10^17 eV using the two air fluorescence detectors of the High Resolution Fly's Eye observatory operating in monocular mode. We describe the detector, photo-tube and atmospheric calibrations, as well as the analysis techniques for the two detectors. We fit the spectrum to a model consisting of galactic and extra-galactic sources. The measured spectrum is consistent with this two-component model including the GZK cutoff.

Keywords

RESOLUTION FLY'S
ULTRAHIGH ENERGY
HIGH RESOLUTION
ENERGY COSMIC
MONOCULAR
FLY'S EYE
SPECTRUM

All Related Versions

Version 1, 2002-08-12, ArXiv
Version 2, 2002-09-05, ArXiv
Version 3, 2003-05-15, ArXiv
Version 4, 2003-05-29, ArXiv
Version 5, 2003-06-04, ArXiv
Published version: Physical Review Letters, 92 (15), 151101.

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