Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-11-01
Astronomy and Astrophysics
Astrophysics
17 pages text, 8 postscript figures
Scientific paper
10.1086/177543
Using the disk wind model of Murray et al. (1995), we calculate line profiles and frequency-resolved response functions for broad line emission from the surface of an accretion disk in an AGN in the presence of a radiatively driven wind. We find that the combined effects of the shears in the wind and in the disk itself produce anisotropic line emission which solves several well-known problems connected with disk models of the broad line region. In particular, the broadening of resonance lines such as \Civ, \Lya, and \Nv\/ can be attributed to orbital motion of the disk gas at radii as close as $\sim 10^{16}$~cm in Seyferts without requiring unrealistically large emission regions in order to produce single-peaked profiles. Furthermore, the anisotropy of the line emission results in frequency-dependent response functions which are no longer red-blue symmetric so that the time delays inferred for the various red and blue components of the line agree qualitatively with recent reverberation mapping observations of NGC~5548.
Chiang James
Murray Nathan
No associations
LandOfFree
Reverberation Mapping and the Disk Wind Model of the Broad Line Region does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Reverberation Mapping and the Disk Wind Model of the Broad Line Region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reverberation Mapping and the Disk Wind Model of the Broad Line Region will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-299276