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Propagation of ultrahigh energy cosmic rays in extragalactic magnetic fields: a view from cosmological simulations
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SYSNO ASEP 0547917 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Propagation of ultrahigh energy cosmic rays in extragalactic magnetic fields: a view from cosmological simulations Author(s) Hackstein, S. (DE) Number of authors 5 Source Title Monthly Notices of the Royal Astronomical Society. - : Oxford University Press - ISSN 0035-8711
Roč. 462, č. 4 (2016), s. 3660-3671Number of pages 12 s. Language eng - English Country GB - United Kingdom Keywords MHD ; relativistic processes ; methods: numerical Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics Research Infrastructure AUGER-CZ - 90038 - Fyzikální ústav AV ČR, v. v. i. Method of publishing Limited access UT WOS 000385231600017 EID SCOPUS 84994512348 DOI 10.1093/mnras/stw1903 Annotation We use the CRPROPA code to simulate the propagation of ultrahigh energy cosmic rays (with energy >= 10(18) eV and pure proton composition) through extragalactic magnetic fields that have been simulated with the cosmological ENZO code. We test both primordial and astrophysical magnetogenesis scenarios in order to investigate the impact of different magnetic field strengths in clusters, filaments and voids on the deflection of cosmic rays propagating across cosmological distances. We also study the effect of different source distributions of cosmic rays around simulated Milky Way-like observers. Our analysis shows that the arrival spectra and anisotropy of events are rather insensitive to the distribution of extragalactic magnetic fields, while they are more affected by the clustering of sources within an similar to 50 Mpc distance to observers. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1093/mnras/stw1903
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