  Galaxies form out of small fluctuations in a smoothly expanding Universe.
However, the initial gravitational collapse phase is accompanied by the
formation of supermassive black holes and clusters of massive stars. Black
holes and star clusters generate powerful outflows in the form of jets and
superwinds that interact with still infalling gas, possibly regulating the
galaxy formation process, initiating new sites of star formation, and carrying
chemically enriched gas to the intergalactic medium. Unfortunately, beyond this
qualitative description our detailed theoretical understanding is poor.
  New results from 3D simulations of a GPS/CSS galaxy, with gravitational
potentials included, shed some new light on the jet driven outflow process in
particular. New code capabilites to predict detailed X-ray spectra from
multi-dimensional time-dependent dynamics simulations of Galaxy Feedback, and
will be useful for future interpretation of X-ray and radio SEDs of forming
galaxies.
