Caustic-like Structures in UHECR Flux after Propagation in Turbulent Intergalactic Magnetic Fields

Autor:	Dolgikh, K., Korochkin, A., Rubtsov, G., Semikoz, D., Tkachev, I.
Rok vydání:	2022
Předmět:	Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
DOI:	10.1134/S1063776123060031
Popis:	UHECR propagation in a turbulent intergalactic magnetic field in the small-angle scattering regime is well understood for propagation distances much larger than the field coherence scale. The diffusion theory doesn't work and unexpected effects may appear for propagation over smaller distances, from a few and up to 10-20 coherence scales. We study the propagation of UHECRs in this regime, which may be relevant for intermediate mass UHECR nuclei and nG scale intergalactic magnetic fields with 1 Mpc coherence scale. We found that the trajectories form a non-trivial caustic-like pattern with strong deviation from isotropy. Thus, measurements of the flux from a source at a given distance will depend on the position of the observer.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2212.01494 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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