Emission lines from illuminated warped accretion disks in AGN
Abstract
The broad line profiles from a nonplanar (warped) accretion disk as a result from reprocessing of central hard radiation are studied in this paper. The disk is warped because of the Bardeen-Petterson effect. Obtained profiles depend significantly on the line of sight - they are asymmetric as well as frequency-shifted in most cases. Since such frequency shifted asymmetric profiles are generally not observed in AGN, the most plausible interpretation is that either the major part of the broad emission does not originate from the disk or the disk is in general planar.
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