Upholding the unified model for AGN: VLT/FORS2 spectropolarimetry of Seyfert 2 galaxies
The origin of the unification model for AGN was the detection of broad hydrogen recombination lines in the optical polarized spectrum of the Seyfert 2 galaxy (Sy2) NGC 1068. Since then, a search for the hidden broad-line region (HBLR) of nearby Sy2s started, but polarized broad lines have only been detected in ~30-40% of the nearby Sy2s observed to
Ramos Almeida, C. et al.
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2016