Declination dependence of the cosmic-ray flux at extreme energies

2003/06/30 by D. S. Gorbunov, D S Gorbunov, S. V. Troitsky +1
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Cosmic ray #Dark Matter and Cosmic Phenomena #Declination #Energy (signal processing) #Flux (metallurgy) #Right ascension #Sky #Solar and Space Plasma Dynamics #astro-ph #hep-ph

paper · pdf · doi:10.1088/1475-7516/2003/12/010

published as JCAP0312:010,2003 · 5 pages, 4 figures; v2: 11 pages, 4 figures, title changed (to avoid confusion with the Southern hemisphere), analysis extended, more data included, results unchanged; to be published in JCAP

arxiv created 2003/12/16 · openalex publication_date 2003/12/31 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the large-scale distribution of the arrival directions of the highest energy cosmic rays observed by various experiments. Despite clearly insufficient statistics, we find a deficit of cosmic rays at energies higher than 10 20 eV from a large part of the sky around the celestial North Pole. We speculate on possible explanations of this feature.

Citations

• The energy spectrum of cosmic rays in the range 3×1017–4×1018 eV as measured with the Haverah Park array
• Correlation function of ultrahigh-energy cosmic rays favors point sources
• Constraints on the ultrahigh-energy photon flux using inclined showers from the Haverah Park array