Self-Consistent Particle Acceleration in Active Galactic Nuc(15)

Adopting the hypothesis that the nonthermal emission of Active Galactic Nuclei (AGN) is primarily due to the acceleration of protons, we construct a simple model in which the interplay of acceleration and losses can be studied together with the formation o

15 meter space where the pair/synchrotron instability dominates, protons lose the bulk of their energy in proton-photon pair production and neutrons are, therefore, unimportant for the evolution of the system.Acknowledgements. We thank Peter Du y, Demos Kazanas and Lev Titarchuk for stimulating discussions. A.M. thanks the D

eutsche Forschungsgemeinschaft for support under Sonderforschungsbereich 328.

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