Systematic modeling of Active Galactic Nuclei
Abstract
The ongoing search for extragalactic gamma-ray sources reveals more and more blazars with the very high energy output dominating the synchrotron component, not to be explained as synchrotron seif-Compton radiation consistently. In the present paper a self consistent hybrid model, allowing leptons and hadrons to be nonthermal emitters within the jet, is described. The model may be applied to various blazars of different subclasses from High Frequency Peaked BL Lac objects to Flat Spectrum Radio Quasars. Depending on the spectra and variability patterns the gamma rays are identified as inverse Compton up scattered photons or proton synchrotron radiation accompanied by photo-hadronic cascades during the modeling. Variability is crucial, for it reveals the highly non-linear nature of the photo-hadronic processes involved as compared to the inverse Compton case. The blazar 1 ES 1011+496 is used as an example and first complete lepto-hadronic and time-dependent results for this source are shown. Obviously only blazars identified as proton accelerators are possible production sites of extragalactic cosmic rays. These are - by far - not all, hence providing a natural explanation of the recently appearing envelope structure of the blazar sequence as different dominating particle species.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 2013
- Bibcode:
- 2013ICRC...33.1208W
- Keywords:
-
- active galactic nuclei: general;
- blazars;
- jets;
- acceleration of particles;
- Fermi-I;
- Fermi-Il;
- numerical simulations;
- extragalactic cosmic rays