Gnatyk, R.B.; Kudrya, Yu.N.; Zhdanov, V.I.
(Advances in Astronomy and Space Physics, 2016)
Among the registered extremely high energy cosmic rays (EHECR, E > 10²⁰ eV) an event with the highest to date energy of E = 3.2 · 10²⁰ eV was detected by the Fly's Eye experiment (FE event) in 1991. With the use of the ...