Ultra high energy cosmic ray spectrum

Author:: Salamon, M. H.
Published:: Aug 1, 1985.
Physical Description:: 1 electronic document
Additional Creators:: Cooper, R., Cady, R., Elbert, J. W., Gerhardy, P. R., Mizumoto, Y., Loh, E. C., Cassiday, G. L., Ko, P. R., and Baltrusaitis, R. M.

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Summary:

Ultra-high energy cosmic rays have been observed by means of atmospheric fluorescence with the Fly's Eye since 1981. The differential energy spectrum above 0.1 EeV is well fitted by a power law with slope 2.94 + or - 0.02. Some evidence of flattening of the spectrum is observed or energies greater than 10 EeV, however only one event is observed with energy greater than 50 EeV and a spectral cutoff is indicated above 70 EeV.

Other Subject(s):

SPACE RADIATION

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 19850025731.
Accession ID: 85N34044.
OG-5.1-2.
19th Intern. Cosmic Ray Conf - Vol. 2; p 146-149; NASA-CP-2376-VOL-2.

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