Resolving the BLR in NGC 3783

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Title: Resolving the BLR in NGC 3783
Author: Lira, P.; Kishimoto, M.; Robinson, Andrew; Young, Stuart; Axon, David; Elvis, Martin; Lawrence, A.; Peterson, Bradley
Abstract: We present results from very high signal-to-noise spectropolarimetric observations of the Seyfert 1 galaxy NGC 3783. Position Angle (PA) changes across the Balmer lines show that the scatterer is resolving the Broad- Emission Line Region (BLR). A broad component seen in polarized light and located bluewards from the H line very likely corresponds to HeII 4686. The lack of PA changes across this line suggests that the region responsible for this emission appears to the scatterer as unresolved as the continuum source, in agreement with the stratified BLR structure determined from reverberation mapping.
Description: Also archived in: arXiv:astro-ph/0612647 v1 Dec 2006
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Date: 2007-10-31

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