Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-02-04
Astropart.Phys. 23 (2005) 355-368
Astronomy and Astrophysics
Astrophysics
24 pages, 14 figures, to be published in Astroparticle Physics
Scientific paper
10.1016/j.astropartphys.2005.02.
Water and ice Cherenkov telescopes of the present and future aim for the detection of a neutrino signal from extraterrestrial sources at energies E>PeV. Some of the most promising extragalactic sources are Active Galactic Nuclei (AGN). In this paper, the neutrino flux from two kinds of AGN sources will be estimated assuming photohadronic interactions in the jet of the AGN. The first analyzed sample contains FR-II radio galaxies while the second AGN type examined are blazars. The result is highly dependent on the proton's index of the energy spectrum. To normalize the spectrum, the connection between neutrino and disk luminosity will be used by applying the jet-disk symbiosis model from Falcke and Biermann (1995). The maximum proton energy and thus, also the maximum neutrino energy of the source is connected to its disk luminosity, which was shown by Lovelace (1976) and was confirmed by Falcke et al. (1995).
Becker Julia K.
Biermann Peter L.
Rhode Wolfgang
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