Deep spectroscopy of a young radio source at z=0.521
  9C J1503+4528 is a very young CSS radio galaxy, with an age of order 10^4 years. This source is an ideal laboratory for the study of the intrinsic host galaxy/IGM properties, radio source interactions, evidence for young stellar populations and the radio source triggering mechanism. Here we present the results of a spectroscopic analysis of this source, considering each of these aspects of radio source physics. 
K. J. Inskip, D. Lee, Garret Cotter, A. C. S. Readhead, T. J. Pearson