Measurement of the Flux of Ultrahigh Energy Cosmic Rays from Monocular Observations by the High Resolution Fly's Eye Experiment
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.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2004
- DOI:
- arXiv:
- arXiv:astro-ph/0208243
- Bibcode:
- 2004PhRvL..92o1101A
- Keywords:
-
- 98.70.Sa;
- 95.85.Ry;
- 96.40.De;
- 96.40.Pq;
- Cosmic rays;
- Neutrino muon pion and other elementary particles;
- cosmic rays;
- Astrophysics
- E-Print:
- 4 pages, 4 figures. Uses 10pt.rtx, amsmath.sty, aps.rtx, revsymb.sty, revtex4.cls