P. Sommers

Detection of a cosmic ray with measured energy well beyond the expected spectral cutoff due to cosmic microwave radiation

D. J. Bird, S. C. Corbató, H. Y. Dai et al. · The Astrophysical Journal · 1995 · 534 citations · Full text

Natural Sciences, Astronomy, Physics +9

Evidence for correlated changes in the spectrum and composition of cosmic rays at extremely high energies

D. J. Bird, S. C. Corbató, H. Y. Dai et al. · Physical Review Letters · 1993 · 510 citations

Natural Sciences, Astronomy, Physics +10

The cosmic-ray energy spectrum observed by the Fly's Eye

D. J. Bird, S. C. Corbató, H. Y. Dai et al. · The Astrophysical Journal · 1994 · 482 citations

Natural Sciences, Astronomy, Physics +8

High-energy neutrinos from active galactic nuclei

F. W. Stecker, Chris Done, M. H. Salamon et al. · Physical Review Letters · 1991 · 473 citations · Full text

Natural Sciences, Astronomy, Physics +13

Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory

A. Aab, P. Abreu, M. Aglietta et al. · Journal of Cosmology and Astroparticle Physics · 2017 · 353 citations · Full text

Natural Sciences, Astronomy, Physics +8