Publication Date:
2019-06-28
Description:
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.
Keywords:
SPACE RADIATION
Type:
OG-5.1-2
,
19th Intern. Cosmic Ray Conf - Vol. 2; p 146-149; NASA-CP-2376-VOL-2
Format:
application/pdf
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