Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-10-12
Astropart.Phys. 17 (2002) 489-495
Astronomy and Astrophysics
Astrophysics
12 pages, 2 figures
Scientific paper
10.1016/S0927-6505(01)00177-3
Angular correlations of ultra-high energy cosmic rays with cosmologically distant sources may provide clues to these mysterious events. We compare cosmic ray tracks with energies above $ 10^{20}eV$ to a compilation of radio-loud compact QSO positions. The statistical method emphasizes invariant quantities and a test of {\it statistical independence} of track and source distributions. Statistical independence is ruled out by several independent statistics at confidence levels of less that $10^{-3}$ ($99.9% $.), indicating that track directions and QSO source positions are correlated at a highly significant level.
Bhattacharya Sibesh
Jain Pankaj
McKay Douglas W.
Ralston John P.
Razzaque Soebur
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