Is There a Disc in the Superluminal Quasars?
E. Rokaki, A. Lawrence, F. Economou, A. Mastichiadis
Abstract
We present a new evidence of the accretion disc in active galactic nuclei, by examining the properties of the Ha emission line versus viewing angle, in a sample of superluminal (SL) quasars. Both line velocity width (FWHM) and rest equivalent width (EW) correlate with viewing angle. These correlations are quantitatively consistent with a disc geometry for both the line and the underlying continuum source.
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