Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...308..805k&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 308, Sept. 15, 1986, p. 805-814.
Astronomy and Astrophysics
Astrophysics
55
Astronomical Models, Electron Scattering, Emission Spectra, Optical Thickness, Quasars, Spectral Line Width, Brightness Distribution, Radiation Transport, Surface Properties
Scientific paper
It is shown that the standard two-phase model of the broad emission-line region in quasars predicts that much of the region is optically thick to electron scattering. It is then demonstrated that three observational puzzles: nearly symmetric Lyα profiles, weakly asymmetric C IV λ1549, and offsets between the peaks of these high ionization lines and the systemic velocity, can all be explained by the standard model of the physical state of the broad-line region (an intercloud medium in rough pressure balance with the line-emitting clouds and a temperature not too far from Comptonization equilibrium) with the addition of the simplest imaginable kinematics. Electron scattering in the intercloud medium is the essential ingredient that had been previously neglected.
Kallman Tim R.
Krolik Julian H.
No associations
LandOfFree
The effects of electron scattering opacity in the broad emission-line regions of quasars 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 The effects of electron scattering opacity in the broad emission-line regions of quasars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The effects of electron scattering opacity in the broad emission-line regions of quasars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1290981