The ionizing radiation of Seyfert 2 galactic nuclei

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

33

Active Galactic Nuclei, Ionizing Radiation, Seyfert Galaxies, Astronomical Models, Luminosity, Photoionization

Scientific paper

We report the discovery of a nonrandom trend in the dispersion of emission-line intensity ratios for Seyfert 2 galaxies. The sense of this pattern suggests the influence of a single physical parameter, the hardness of the ionizing continuum, which controls the heating energy per ionizing photon. We compare the observed line ratios with new photoionization calculations and find that the observed distributions can be reproduced if the ionizing continuum is parametrized by a power law. Our results also suggest an inverse correlation between luminosity and continuum hardness for Seyfert 2 nuclei; if true, this trend extends a similar pattern known in quasars and Seyfert 1 galaxies to active galactic nuclei of lower luminosity. Samples of Seyfert 2 nuclei with improved selection uniformity are desirable for elaboration of these findings.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The ionizing radiation of Seyfert 2 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 The ionizing radiation of Seyfert 2 galactic nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ionizing radiation of Seyfert 2 galactic nuclei will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1735548

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.