Very High Redshift Radio Galaxies
  High redshift radio galaxies (HzRGs) provide unique targets for the study of the formation and evolution of massive galaxies and galaxy clusters at very high redshifts. We discuss how efficient HzRG samples are selected, the evidence for strong morphological evolution at near-infrared wavelengths, and for jet-induced star formation in the z=3.800 HzRG 4C41.17. 
Wil van Breugel (IGPP/LLNL), Carlos De Breuck (IGPP/LLNL and Leiden),   Huub Rottgering (Leiden), George Miley (Leiden), & A...