Extragalactic Relativistic Jets and Nuclear Regions in Galaxies
  Past years have brought an increasingly wider recognition of the ubiquity of relativistic outflows (jets) in galactic nuclei, which has turned jets into an effective tool for investigating the physics of nuclear regions in galaxies. A brief summary is given here of recent results from studies of jets and nuclear regions in several active galaxies with prominent outflows. 
Andrei P. Lobanov, J. Anton Zensus (Max-Planck-Institut for   Radioastronomy, Bonn, Germany)