Secondary Photons and Neutrinos from Cosmic Rays Produced by Distant Blazars

Warren Essey, Oleg E. Kalashev, Alexander Kusenko, and John F. Beacom
Phys. Rev. Lett. 104, 141102 – Published 8 April 2010

Abstract

Secondary photons and neutrinos produced in the interactions of cosmic ray protons emitted by distant active galactic nuclei (AGN) with the photon background along the line of sight can reveal a wealth of new information about the intergalactic magnetic fields, extragalactic background light, and the acceleration mechanisms of cosmic rays. The secondary photons may have already been observed by gamma-ray telescopes. We show that the secondary neutrinos improve the prospects of discovering distant blazars by IceCube, and we discuss the ramifications for the cosmic backgrounds, magnetic fields, and AGN models.

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  • Received 27 December 2009

DOI:https://doi.org/10.1103/PhysRevLett.104.141102

©2010 American Physical Society

Authors & Affiliations

Warren Essey1, Oleg E. Kalashev2, Alexander Kusenko1,3, and John F. Beacom4,5,6

  • 1Department of Physics and Astronomy, University of California, Los Angeles, California 90095-1547, USA
  • 2Institute for Nuclear Research, 60th October Anniversary Prospect 7a, Moscow 117312 Russia
  • 3IPMU, University of Tokyo, Kashiwa, Chiba 277-8568, Japan
  • 4Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA
  • 5Department of Physics, Ohio State University, Columbus, Ohio 43210, USA
  • 6Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA

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Issue

Vol. 104, Iss. 14 — 9 April 2010

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