The effect of highly structured cosmic magnetic fields on ultra-high energy cosmic ray propagation

Abstract

The possibility that the magnetic field is strongly correlated with the large-scale structure of the universe has been recently considered in the literature. In this scenario the intergalactic magnetic field has a strong ($\mu$G) regular component spanning tens of Mpc but localized in sheets and filaments, while the vast voids in between are almost free of magnetic field. If true, this could have important consequences on the propagation of ultra-high energy cosmic rays, and severely affect our capacity of doing astronomy with charged particles. A quantitative discussion of these effects is given in the present work.

4 pages, 4 figures (jpg), Astrophys. J. Letters (in press)

References in corpus (4)

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• On the propagation of the highest energy cosmic ray nuclei
• On the Origin of the Highest Energy Cosmic Rays
• On the significance of the observed clustering of ultra-high energy cosmic rays

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• TeV gamma rays and cosmic rays from the nucleus of M87, a mis-aligned BL Lac object
• Origin of the highest energy cosmic rays observed
• The Anisotropy of the Ultra-High Energy Cosmic Rays
• The energy spectrum observed by the AGASA experiment and the spatial distribution of the sources of ultra-high energy cosmic rays
• Astroparticle Theory: Some New Insights into High Energy Cosmic Rays
• Propagation of ultra-high energy protons in regular extragalactic magnetic fields
• Isotropization of Ultra-High Energy Cosmic Ray Arrival Directions by Radio Ghosts
• Magnetically Induced Anisotropies in the Arrival Directions of Ultra-high-energy Cosmic Rays from Nearby Radio Galaxies
• Ultra-high energy cosmic rays: are they isotropic?
• Observable spectral and angular distributions of $\gamma$-rays from extragalactic ultrahigh energy cosmic ray accelerators: the case of extreme TeV blazars
• Nearby active galactic nuclei and starburst galaxies as sources of the measured UHECRs anisotropy signal
• Ultra-high energy cosmic rays: from GeV to ZeV
• On the role of galactic magnetic halo in the ultra high energy cosmic rays propagation