Observation of the Ankle and Evidence for a High-Energy Break in the Cosmic Ray Spectrum

Simple item page
dc.creators Eye Collaboration
dc.date2005-01-17
dc.date2005-06-07
dc.date.accessioned2026-07-07T10:27:23Z
dc.date.available2026-07-07T10:27:23Z
dc.descriptionWe have measured the cosmic ray spectrum at energies above $10^{17}$ eV using the two air fluorescence detectors of the High Resolution Fly's Eye experiment operating in monocular mode. We describe the detector, PMT and atmospheric calibrations, and the analysis techniques for the two detectors. We fit the spectrum to models describing galactic and extragalactic sources. Our measured spectrum gives an observation of a feature known as the ``ankle'' near $3\times 10^{18}$ eV, and strong evidence for a suppression near $6\times 10^{19}$ eV.
dc.description14 pages, 9 figures. To appear in Physics Letters B. Accepted version
dc.identifierhttps://arxiv.org/abs/astro-ph/0501317
dc.identifierhttp://arxiv.org/abs/astro-ph/0501317
dc.identifierPhys.Lett.B619:271-280,2005
dc.identifierdoi:10.1016/j.physletb.2005.05.064
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177137
dc.subjectAstrophysics
dc.titleObservation of the Ankle and Evidence for a High-Energy Break in the Cosmic Ray Spectrum
dc.typetext

Files

Collections

arXiv