Neutrinos from photo-hadronic interactions in Pks2155-304

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 hour at X-ray and TeV energies was observed in 2006. 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.

contribution to RICAP 2009 and ICRC 2009 - both papers are combined in one draft. 11 pages, 3 figures

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Cited by in corpus (3)

• Limits on the flux of tau neutrinos from 1 PeV to 3 EeV with the MAGIC telescopes
• Detection of tau neutrinos by Imaging Air Cherenkov Telescopes
• Searching for tau neutrinos with Cherenkov telescopes