The size of the broad-line regions in dwarf active galaxies

Details The size of the broad-line regions in dwarf active galaxies The size of the broad-line regions in dwarf active galaxies

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.340..793w&link_type=abstract

Monthly Notice of the Royal Astronomical Society, Volume 340, Issue 3, pp. 793-798.

Physics

24

Black Hole Physics, Galaxies: Active, Galaxies: Dwarf, Galaxies: Kinematics And Dynamics

Scientific paper

Using the empirical relation between black hole mass and bulge velocity dispersion established for active and quiescent galaxies, we derive the sizes of the broad-line regions (BLRs) for 22 dwarf active galaxies. These sizes are compared with those of Seyfert 1 galaxies and quasars. We find that the size of the BLRs of Seyfert 1s and quasars is well scaled with the luminosity of the Hα line with a slope of ~=0.5, and dwarf active galaxies show larger BLRs than the values predicted by the BLR size-luminosity relation for Seyfert 1 galaxies and quasi-stellar objects (QSOs). The results suggest that the BLRs of dwarf active galactic nuclei (AGN) have lower ionization or/and lower density than those of Seyfert 1 galaxies and QSOs. Photoionization calculations show that the large BLRs are consistent with observed emission line spectra.

Affiliated with

Also associated with

No associations

Rating

The size of the broad-line regions in dwarf active galaxies 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 size of the broad-line regions in dwarf active galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The size of the broad-line regions in dwarf active galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1540669