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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 79, Issue 12, Pages 719–723
(Mi jetpl2320)
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This article is cited in 97 scientific papers (total in 97 papers)
GRAVITY, ASTROPHYSICS
Mapping deflections of extragalactic ultrahigh energy cosmic rays in magnetohydrodynamic simulations of the Local Universe
K. Dolaga, D. Grassob, V. Springelc, I. Tkachevd a Dipartimento di Astronomia, Università di Padova,
Padua, Italy
b Scuola Normale Superiore and I.N.F.N., Pisa, Italy
c Max-Planck-Institut für Astrophysik, Garching, Germany
d CERN — Theory Division, Geneve, Switzerland
Abstract:
We construct a map of deflections of ultrahigh energy cosmic rays by extragalactic magnetic fields using a magneto-hydrodynamical 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 $\lesssim 1^\circ$ are caused by crossings of filaments. For protons with energies $E \geq 4 \cdot 10^{19}$ 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.
Received: 22.04.2004 Revised: 12.05.2004
Citation:
K. Dolag, D. Grasso, V. Springel, I. Tkachev, “Mapping deflections of extragalactic ultrahigh energy cosmic rays in magnetohydrodynamic simulations of the Local Universe”, Pis'ma v Zh. Èksper. Teoret. Fiz., 79:12 (2004), 719–723; JETP Letters, 79:12 (2004), 583–587
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https://www.mathnet.ru/eng/jetpl2320 https://www.mathnet.ru/eng/jetpl/v79/i12/p719
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Abstract page: | 375 | Full-text PDF : | 90 | References: | 71 |
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