Which blazars are neutrino loud?

Details Which blazars are neutrino loud? Which blazars are neutrino loud?

2002-08-27

arxiv.org/abs/hep-ph/0208248v2

Phys.Rev. D66 (2002) 123003

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figures, version to be published in PRD

Scientific paper

10.1103/PhysRevD.66.123003

Protons accelerated in the cores of active galactic nuclei can effectively produce neutrinos only if the soft radiation background in the core is sufficiently high. We find restrictions on the spectral properties and luminosity of blazars under which they can be strong neutrino sources. We analyze the possibility that neutrino flux is highly beamed along the rotation axis of the central black hole. The enhancement of neutrino flux compared to GeV gamma-ray flux from a given source makes the detection of neutrino point sources more probable. At the same time the smaller open angle reduces the number of possible neutrino-loud blazars compared to the number of gamma-ray loud ones. We present the table of 15 blazars which are the most likely candidates for the detection by future neutrino telescopes.

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