On the origin of double-peaked emission lines in active galactic nuclei

Details On the origin of double-peaked emission lines in active galactic nuclei On the origin of double-peaked emission lines in active galactic nuclei

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.278l..35l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 278, Issue 2, pp. L35-L36.

Astronomy and Astrophysics

Astronomy

13

Accretion, Accretion Discs, Galaxies: Active

Scientific paper

We propose an observational test to distinguish between the two main competing models for the origin of double-peaked emission lines in active galactic nuclei, namely, an accretion disc versus two line-emitting cones. In particular, we point out that, in the model in which two line-emitting cones are illuminated from the centre, not only is the red wing always predicted to lag the blue one, but also, in standard unified models for the accretion flow, that delay is predicted to be of the order of years.

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