Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvl..54.1875b&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 54, April 22, 1985, p. 1875-1877. NSF-supported research.
Physics
37
Cosmic Rays, Energy Spectra, High Energy Interactions, Monte Carlo Method, Spectrum Analysis
Scientific paper
The authors report a measurement of the ultrahigh-energy cosmic-ray spectrum using an atmospheric fluorescence technique for extensive-air-shower detection. The differential spectrum between 0.1 and 10 EeV (1 EeV = 1018eV) is well fitted by a power law with slope 2.94±0.02. Above 10 EeV evidence is presented for the development of a spectral "bump" followed by a cutoff at 70 EeV.
Baltrusaitis Rose Mary
Cady R.
Cassiday G. L.
Cooper Randall
Elbert Jerome W.
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