Studies of the UHECR propagation in the Galactic Magnetic Field

Abstract

We present the results of simulations of the ultra-high energy cosmic ray (UHECR) propagation in the Galactic magnetic field (GMF). Different assumptions on the large-scale GMF structure and/or primary particle lead to distinctly different deflection patterns of the highest energy cosmic rays (CR). The GMF modifies the exposure of an UHECR experiment to the extragalactic sky. We estimated these effects for the Pierre Auger experiment. Further forward-tracking studies under plausible UHECR sources scenarios will allow for direct comparison with the observed correlation between the nearby active galactic nuclei (AGN) and the highest energy Auger events.

4 pages, 3 figures, 1 table. To be published in the Proceedings of the XV International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2008), Paris, France, September 1-6, 2008

References in corpus (4)

• Correlation of the highest energy cosmic rays with nearby extragalactic objects
• Observation of the suppression of the flux of cosmic rays above 4x10^19eV
• Rotation Measures of Extragalactic Sources Behind the Southern Galactic Plane: New Insights into the Large-Scale Magnetic Field of the Inner Milky Way
• Observational constraints on models for the interstellar magnetic field in the Galactic disk

Cited by in corpus (5)

• A New Model of the Galactic Magnetic Field
• Galactic magnetic deflections and Centaurus A as a UHECR source
• Ultrahigh Energy Nuclei in the Galactic Magnetic Field
• The Centaurus A Ultrahigh-Energy Cosmic Ray Excess and the Local Extragalactic Magnetic Field
• Method to Look for Imprints of Ultrahigh Energy Nuclei Sources