Modeling the April 1997 flare of Mkn 501

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Abstract
The April 1997 giant flare of Mkn 501 is modelled by a stationary Synchrotron-Proton-Blazar model. Our derived model parameters are consistent with X-ray-to-TeV-data in the flare state and diffusive shock acceleration of e − and p in a Kolmogorov/Kraichnan turbulence spectrum. While the merging pair-synchrotron cascade spectra initiated by photons from π 0 -decay and electrons from π ± →μ ± →e ± -decay turn out to be relatively featureless, μ ± and p synchrotron radiation and their cascade radiation produce a double-humped spectral energy distribution. For the present model we find p synchrotron radiation to dominate the TeV emission, while the contribution from the synchrotron radiation of the pairs, produced by the high energy hump, is only minor.

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