Speaker
Description
The broad-band multiwavelength spectral energy distribution of blazars consists of two components: the low-energy hump commonly interpreted as synchrotron emission of relativistic electrons accelerated in a parsec-scale magnetized jet and the high-energy component, the nature of which remains debatable, depending on the jet composition. Two main scenarios were developed to shed light on emission of blazars, i.e. leptonic models, in which the radiative emission is dominated by leptons, electrons and positrons, and hadronic models, taking into account both leptons and hadrons. In hadronic models, the gamma-ray emission is associated with synchrotron emission by protons and/or secondary leptons produced in proton-photon interactions, and, together with photons, hadronic emission models predict the emission of neutrinos.
The simulation of proton-photon interactions and all associated radiative processes is a complex numerical task and different approaches to the problem have been adopted in the literature. So far, no systematic comparison between the different codes has been performed, preventing a clear understanding of the underlying uncertainties in the numerical simulations. To fill this gap, we have undertaken the first comprehensive comparison of blazar hadronic codes, and the results from this effort will be presented in this contribution.
| Track | Analysis Techniques |
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