Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles

Details Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...265...35h&link_type=abstract

Astrophysical Journal, Part 1, vol. 265, Feb. 1, 1983, p. 35-42.

Astronomy and Astrophysics

Astrophysics

20

Emission Spectra, Galactic Radiation, Galactic Structure, Line Spectra, Quasars, Radiative Transfer, Seyfert Galaxies, Astronomical Models, Atomic Spectra, Luminosity, Molecular Clouds, Orbit Perturbation, Poynting Theorem, Pressure Broadening, Radial Velocity, Radiation Pressure

Scientific paper

Radiative transfer effects are examined in an investigation of the kinematics of quasar and Seyfert emission-line regions with pancake cloud geometries. Consideration is given only to the effects of limb brightening with the aspect angle of pancake clouds, assuming that all lines lie on a single portion of the curve of growth. This effect is coupled with several simple but plausible ensemble geometries and dynamics, and a number of theoretical emission-line profiles have been generated. It is shown that these profiles differ substantially depending on both the ensemble geometry and the portion of the curve of growth considered; for a given ensemble geometry, optically thick line profiles are different from optically thick profiles. It is shown that, for radiatively driven clouds, ensembles of clouds which have maximum velocities approaching the terminal velocity of the acceleration mechanism never produce acceptable profiles unless the cloud luminosity is a strongly decreasing function of radius.

Affiliated with

Also associated with

No associations

Rating

Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles 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 Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical quasar emission-line profiles. I - Curve-of-growth effects on observed profiles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1305646