The Compton-thick AGN in the GPS radio source OQ+208
  We report in this paper the ASCA discovery of the first radio-loud Active Galactic Nucleus (AGN) covered by a Compton-thick X-ray absorber, in the GigaHertz Peaked Spectrum (GPS) radio source OQ+208. It represents one of the few available direct measurements of dense matter in the nuclear environment of this class of sources, which may provide the confining medium to the radio-emitting region if GPS sources are indeed "frustrated" classical radio doubles. The perspective of future studies with XEUS are discussed. 
M. Guainazzi (1), C. Stanghellini (2), P. Grandi (3) ((1) XMM-Newton   Science Operation Center/RSSD-ESA, Villafranca del Ca...