Neutrinos from photo-hadronic interactions in Pks2155-304 |
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| Authors: | Julia K Becker Athina Meli Peter L Biermann |
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| Affiliation: | a Ruhr-Universität Bochum, Fakultät für Physik & Astronomie, Theoretische Physik IV, 44780 Bochum, Germany;b Göteborgs Universitet, Institution för Fysik, 41296 Göteborg, Sweden;c Erlangen Center for Astroparticle Physics, Friedrich-Alexander University, Erlangen-Nürnberg, Germany;d MPI for Radioastronomy, Bonn, Germany;e Bonn University, Germany;f Department of Physics & Astronomy, University of Alabama, Tuscaloosa, AL, USA;g Department of Physics, University of Alabama at Huntsville, AL, USA;h FZ Karlsruhe, and Physics Department, University Karlsruhe, Germany |
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| Abstract: | The high-peaked BL Lac object Pks2155-304 shows high variability at multiwavelengths, i.e. from optical up to TeV energies. A giant flare of around 1 h at X-ray and TeV energies was observed in 2006 1]. In this context, it is essential to understand the physical processes in terms of the primary spectrum and the radiation emitted, since high-energy emission can arise in both leptonic and hadronic processes. In this contribution, we investigate the possibility of neutrino production in photo-hadronic interactions. In particular, we predict a direct correlation between optical and TeV energies at sufficiently high optical radiation fields. We show that in the blazar Pks2155-304, the optical emission in the low-state is sufficient to lead to photo-hadronic interactions and therefore to the production of high-energy photons. |
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| Keywords: | Neutrinos Pks2155-304 Photo-hadronic interactions |
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