The Seyfert Population in the Local Universe

Details The Seyfert Population in the Local Universe The Seyfert Population in the Local Universe

2003-07-09

arxiv.org/abs/astro-ph/0307180v1

Astron.J.126:1750,2003

Astronomy and Astrophysics

Astrophysics

35 pages, 13 figures, Accepted to be publised in Astronomical Journal

Scientific paper

10.1086/378360

The magnitude-limited catalog of the Southern Sky Redshift Survey (SSRS2), is used to characterize the properties of galaxies hosting Active Galactic Nuclei. Using emission-line ratios, we identify a total of 162 (3%) Seyfert galaxies out of the parent sample with 5399 galaxies. The sample contains 121 Seyfert 2 galaxies and 41 Seyfert 1. The SSRS2 Seyfert galaxies are predominantly in spirals of types Sb and earlier, or in galaxies with perturbed appearance as the result of strong interactions or mergers. Seyfert galaxies in this sample are twice as common in barred hosts than the non-Seyferts. By assigning galaxies to groups using a percolation algorithm we find that the Seyfert galaxies in the SSRS2 are more likely to be found in binary systems, when compared to galaxies in the SSRS2 parent sample. However, there is no statistically significant difference between the Seyfert and SSRS2 parent sample when systems with more than 2 galaxies are considered. The analysis of the present sample suggests that there is a stronger correlation between the presence of the AGN phenomenon with internal properties of galaxies (morphology, presence of bar, luminosity) than with environmental effects (local galaxy density, group velocity dispersion, nearest neighbor distance).

Affiliated with

Also associated with

No associations

Rating

The Seyfert Population in the Local Universe 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 Seyfert Population in the Local Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Seyfert Population in the Local Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576994