  Recently reported coincidences between high-energy neutrino events and major
blazar outbursts reinforce the relevance of lepto-hadronic emission models for
blazars. We study the influence of physical parameters on the neutrino output
modeling blazar spectral energy distributions self-consistently assuming a
relativistically propagating acceleration zone surrounded by a larger cooling
zone. We find that the gross features of the spectral energy distribution can
readily be explained with the model. A rigorous test requires time-resolved
measurements of blazar spectral energy distributions during an outburst and
high-statistics neutrino measurements to discriminate the leptonic and hadronic
emission components.
