Cosmic Rays at the Highest Energies

Wolfendale, A. W.; Wdowczyk, J.

doi:10.1007/978-94-011-3158-2_21

Cosmic Rays at the Highest Energies

A. W. Wolfendale⁴ &
J. Wdowczyk⁵

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Part of the book series: NATO ASI Series ((ASIC,volume 337))

Abstract

The case is made for there being an extragalactic component of cosmic rays, having an energy density locally of about 10^-5eV cm^-3 and dominating over Galactic particles at energies above about 2 x 10¹⁹eV. The interaction of the extragalactic particles, assumed to be protons, with the cosmic microwave background is considered under different assumptions as to the sources of the particles. Electromagnetic cascades ensue from the interactions, leading to potentially detectable fluxes of gamma rays, most particularly at energies near 10⁹eV, 10¹⁴eV and above 10¹⁹eV. Estimates of the fluxes are given.

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Authors and Affiliations

Physics Department, University of Durham, South Road, Durham, DH1 3LE, UK
A. W. Wolfendale
Institute of Nuclear Studies, Uniwersytecka 5, Lodz 1, Poland
J. Wdowczyk

Authors

A. W. Wolfendale
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J. Wdowczyk
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Editor information

Editors and Affiliations

Department of Physics and Astronomy, University of Maryland, College Park, MD, USA
Maurice M. Shapiro
Gamma and Cosmic Ray Astrophysics, Naval Research Laboratory, Code 4150, Washington, DC, USA
Rein Silberberg
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, USA
John P. Wefel

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Wolfendale, A.W., Wdowczyk, J. (1991). Cosmic Rays at the Highest Energies. In: Shapiro, M.M., Silberberg, R., Wefel, J.P. (eds) Cosmic Rays, Supernovae and the Interstellar Medium. NATO ASI Series, vol 337. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3158-2_21

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DOI: https://doi.org/10.1007/978-94-011-3158-2_21
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-5392-1
Online ISBN: 978-94-011-3158-2
eBook Packages: Springer Book Archive

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