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Relativistic Hadrons in Cosmic Compact Objects pp 67–72Cite as

Pair cascade model constraints on energetic particle emission from active galactic nuclei

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Part of the book series: Lecture Notes in Physics ((LNP,volume 391))

Abstract

The injection of extremely relativistic protons in the compact central region of an AGN creates electrons and neutrons by interaction with the ambient radiation and particles. The resulting electrons have very high Lorentz factors and participate in a Klein-Nishina pair cascade with UV photons. These high γ electrons cause a flattening of the gamma-ray spectra obtained from first-order pair cascade models, which is contrary to observations. This fact is used to place upper limits on the high γ electron injection luminosity in AGN central regions, and consequently deduce upper limits for luminosities of the relativistic neutrons that are produced and emitted from these compact regions.

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Author information

Author notes

  1. Matthew G. Baring

    Present address: Department of Physics, North Carolina State University, 27695, Raleigh, NC, USA

Authors and Affiliations

  1. Max-Planck-Institut für Astrophysik, Karl Schwarzschild Strasse 1, D-8046, Garching bei München, Germany

    Matthew G. Baring

Authors
  1. Matthew G. Baring
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Andrzej A. Zdziarski Marek Sikora

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© 1991 Springer-Verlag

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Baring, M.G. (1991). Pair cascade model constraints on energetic particle emission from active galactic nuclei. In: Zdziarski, A.A., Sikora, M. (eds) Relativistic Hadrons in Cosmic Compact Objects. Lecture Notes in Physics, vol 391. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-54789-4_55

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  • DOI: https://doi.org/10.1007/3-540-54789-4_55

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54789-1

  • Online ISBN: 978-3-540-46448-8

  • eBook Packages: Springer Book Archive

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