Podorvanyuk, N.Yu.; Vitrishchak, V.M.; Pashchenko, I.N.; Gabuzda, D.C.
(Advances in Astronomy and Space Physics, 2011)
We present the first preliminary evidence of difference in the circular polarized emission between quasars and BL Lacs. BL Lac objects seem to lack the sources with high circular polarization degrees. It cannot be due to ...