Name of the Speaker(s): Krzysztof Tadeusz Chyzy
Title of the communication: Jet and radio lobe analytical modelling
Preliminary abstract (12 lines max.): An approximate approach to the modelling of jet and large-scale structure evolution of powerful extragalactic radio sources will be presented. It is assumed that two plasma jets propagate from the core through the ambient medium, create a shock front at the jet head and deposit constant fractions of the jet energy into a lobe in the forms of cosmic ray electrons and ions, thermal particles and magnetic fields. The whole forming lobe is approximated by a range of adjacent volume elements that evolve individually and sideways only. From the pressure and energy balance geometrical properties of this evolution are found as well as energy and synchrotron luminosity of the entire lobe. Classical and relativistic description of the jet propagation and various physical parameters in the jet and the lobe will be discussed in the framework of the presented model.