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High-energy neutrinos from radio galaxies

J. Becker Tjus1, B. Eichmann1, F. Halzen2, A. Kheirandish2, and S. M. Saba1

  • 1Theoretische Physik IV: Plasma-Astroteilchenphysik, Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, 44780 Bochum, Germany
  • 2Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA

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Phys. Rev. D 89, 123005 – Published 11 June, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.123005

Abstract

The IceCube experiment has recently reported the first observation of high-energy cosmic neutrinos. Their origin is still unknown. In this paper, we investigate the possibility that they originate in active galaxies. We show that hadronic interactions (pp) in the generally less powerful, more frequent, FR-I radio galaxies are one of the candidate source classes being able to accommodate the observation while the more powerful, less frequent, class of FR-II radio galaxies has too low of a column depths to explain the signal.

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Phys. Rev. D 89, 123005– Published 11 June, 2014
  • Received 24 February 2014

© 2014 American Physical Society

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