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Effect of the Extragalactic Magnetic Field on Cascade Gamma-Ray Emissions

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The author considers the intensity of diffuse cascade gamma-ray emissions produced in electromagnetic cascades when ultra-high-energy cosmic rays propagate in extragalactic space. It is found that diffuse cascade gamma-ray spectra depend weakly on the extragalactic magnetic field in the ~107–109 eV range of energies. There is thus no need to refine models of the extragalactic magnetic field to estimate the intensity of cascade emissions in this range of energies.

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This work was supported by ongoing institutional funding. No additional grants to perform or direct this particular research were obtained.

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Correspondence to A. V. Uryson.

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Translated by I. Obrezanova

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Uryson, A.V. Effect of the Extragalactic Magnetic Field on Cascade Gamma-Ray Emissions. Bull. Russ. Acad. Sci. Phys. 88, 422–423 (2024). https://doi.org/10.1134/S1062873823705627

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  • DOI: https://doi.org/10.1134/S1062873823705627

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