Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei

Details Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei

1998-04-18

arxiv.org/abs/astro-ph/9804183v1

Astronomy and Astrophysics

Astrophysics

12 pages, 2 encapsulated Postscript figures. To be Published in The Astrophysical Journal Letters

Scientific paper

10.1086/311369

We have calculated FeII emission line strengths for Active Galactic Nuclei Broad-Line Regions using precise radiative transfer and Iron Project atomic data. We improve the treatment of all previously considered excitation mechanisms for the FeII emission, continuum fluorescence, collisional excitation, fluorescence by self-overlap among the iron lines, and fluorescent excitation by Lyman-alpha. We demonstrate that Lyman-alpha fluorescence is of fundamental importance in determining the strength of the FeII emission. In addition to enhancing the ultraviolet and optical FeII flux, Lyman-alpha fluorescence also results in significant near-infrared FeII emission in the 8500-9500 Angstrom wavelength range. New observations are suggested to probe this effect in strong FeII emitting quasars.

Affiliated with

Also associated with

No associations

Rating

Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei 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 Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lyman Alpha Fluorescent Excitation of FeII in Active Galactic Nuclei will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-310616