Berlin 2014 – wissenschaftliches Programm
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EP: Fachverband Extraterrestrische Physik
EP 1: Astrophysik
EP 1.6: Vortrag
Montag, 17. März 2014, 15:30–15:45, DO24 1.103
Studies of Blazar emission regions and their morphology — •Stephan Richter1 and Felix Spanier2 — 1Lehrstuhl für Astronomie, Universität Würzburg, Germany — 2Centre for Space Research, North-West University, Potchefstroom, South Africa
The so called Synchrotron-Self-Compton (SSC) models have been quite successful in explaining the broad spectral energy distributions (SEDs) emitted by Blazars. They are, however, unable to explain the observed radio emission. Furthermore the assumption of a finite emission region imposes artificial boundary conditions for most of the high energy particle content.
In this talk we present studies aiming to resolve both of the above issues. We adopt the so called shock-in-jet model and track the accelerated particles downstream up to scales of VLBI observations. We find that most of the SED, except the highest energies, is strongly dependent on the imposed morphology and can be used to constrain the radial confinement and magnetic field structure behind the shock.
The full time dependence of our approach can be used to further constrain the model by comparison with radio and high energy light-curves and their time lags.