Haas, Martin, Siebenmorgen, Ralf, Pantin, Eric, Horst, Hannes, Smette, Alain, Kaufl, Hans-Ulrich, ...
Half of the Seyfert-2 galaxies escaped detection of broad lines in their polarised spectra observed so far. Some authors have suspected that these non-HBLRs contain real Sy2 nuclei without intrinsic...