UHECR propagation in the Galaxy: clustering versus isotropy

Abstract

Recently the AGASA Collaboration presented data suggesting a significant clustering of ultra-high energy cosmic rays coming from the outer Galaxy region. In this paper we calculate expected cosmic ray arrival distributions for several simple, limiting source location scenarios and investigate the possibility of clustering and correlation effects. The role of the Galactic magnetic field is discussed in detail.

33 pages, 21 figures (5 in color), 2 tables

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Cited by in corpus (44)

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• The Astrophysics of Ultrahigh Energy Cosmic Rays
• The 511 keV emission from positron annihilation in the Galaxy
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• Ultra High Energy Cosmic Rays from Black Hole Jets of Radio Galaxies
• Ultra-High Energy Cosmic Rays in a Structured and Magnetized Universe
• The Galactic magnetic field and propagation of ultra-high energy cosmic rays
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• The Galactic magnetic field as spectrograph for ultra-high energy cosmic rays
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• Revisiting Propagation Delays of Ultra-High-Energy Cosmic Rays from Long-lived Sources
• Magnetic deflections and possible sources of the ultra-high-energy cosmic rays in the AGASA-HiRes-Yakutsk cluster