Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pobeo..84..475k&link_type=abstract
Publications of the Astronomical Observatory of Belgrade, vol. 84, pp. 475-478
Astronomy and Astrophysics
Astronomy
Scientific paper
We have investigated the line-continuum relations by using an AGN SDSS sample. For the first time we have considered H alpha and [N II] emission lines in the line-continuum analysis. Also, in order to find more details, we decomposed complex profiles of Balmer lines (H alpha and H beta) on three components (NLR, ILR and BLR) which are coming from different line emission regions and we examine line components-continuum relations. Numerous Fe II lines (lambdalambda 4450-5350 A) are separated in the three groups (^4F, ^6S and ^4G), according to atomic properties of their transitions, and each Fe II line group is compared separately with continuum luminosity. Indications of Baldwin effect are found for the [O III], [N II] and NLR component of H beta, but trends of inverse Baldwin effect are observed for the Fe II ^6S line group, H beta BLR, H alpha ILR and specially for the H alpha BLR component. Different trends in line-continuum relations required further investigations, to explain their physical background.
Dimitrijevic Milan S.
Kovacevic Jelena
Popovic Luka C.
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