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Paper: Measuring Hβ BLR Flows in NGC 5548
Volume: 373, The Central Engine of Active Galactic Nuclei
Page: 29
Authors: Welsh, W.F.; Martino, D.L.; Kawaguchi, G.; Kollatschny, W.
Abstract: Using archival International AGN Watch observations we find a correlation between the asymmetry of the Hβ line and the system luminosity: the line becomes bluer as the system gets brighter. We also find a differential lag between the red and blue wings of the line: the blue wing lags the red by ~4 days, suggesting an inflow component of the BLR.
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