2003/10/31 by Klaus Dolag, K. Dolag, Dario Grasso +3 · 2 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #Radio Astronomy Observations and Technology #astro-ph #hep-ph
paper · pdf · doi:10.1134/1.1790011
published as JETP Lett. 79 (2004) 583-587; Pisma Zh.Eksp.Teor.Fiz. 79 (2004) 719-723 · Replaced with the version accepted for publication in JETP Lett. Additional graphical material can be found here: http://dipastro.pd.astro.it/~cosmo/LocalMHD
arxiv created 2004/05/17 · openalex publication_date 2004/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
We construct a map of deflections of ultrahigh-energy cosmic rays by extragalactic magnetic fields using a magnetohydrodynamical simulation of cosmic structure formation that realistically reproduces the positions of known galaxy clusters in the Local Universe. Large deflection angles occur in cluster regions, which, however, cover only an insignificant fraction of the sky. More typical deflections of order ≲1° are caused by crossings of filaments. For protons with energies E ≥4×10 19 eV, deflections do not exceed a few degrees over most of the sky up to a propagation distance of 500 Mpc. Given that the field strength of our simulated intergalactic magnetic field forms a plausible upper limit, we conclude that charged particle astronomy is in principle possible.