Kinematic Linkage Between the Broad and Narrow Line Emitting Gas in AGN

Details Kinematic Linkage Between the Broad and Narrow Line Emitting Gas in AGN Kinematic Linkage Between the Broad and Narrow Line Emitting Gas in AGN

2002-07-18

arxiv.org/abs/astro-ph/0207387v1

Astrophys.J. 576 (2002) L9-L14

Astronomy and Astrophysics

Astrophysics

accepted for publication by ApJ Lett

Scientific paper

10.1086/342783

We investigate the radial velocity difference between the [OIII]5007,4959 and H-beta lines for a sample of 200 low redshift AGN. We identify seven objects showing an [OIII]5007 blueshift relative to H-beta with amplitude larger than 250 km/s (blue "outliers"). These line shifts are found in sources where the broad high ionization lines (e.g. CIV1549) also show a large systematic blueshift. Such blueshifts occur only in the population A region of the Eigenvector 1 parameter domain (that also contains NLSy1 sources). We suggest that [OIII] blueshifts are also associated with the high ionization outflow originating in these sources. This is a direct kinematic linkage between narrow and broad line emitting gas.

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