The Narrow-Line Region of Narrow-Line Seyfert 1 Galaxies

Abstract

We have studied the physical properties of a sample of narrow-line Seyfert 1 (NLS1) galaxies, and present a summary of our previous results, and new results. In particular, we have previously shown that (1) the locus of NLS1 galaxies on the M_BH-sigma_[OIII] plane does follow the relation of non-active galaxies after removing objects obviously dominated by outflows as evidenced by their [OIII] core blueshifts. We have (2) identified a number of so-called 'blue outliers' with large outflow velocities revealed by their emission-line kinematic shifts. We also (3) present new correlations and trends which link black hole mass, Eddington ratio and physical parameters of the emission-line regions.

arXiv comment9 pages, 6 figures, Proceedings of the Workshop "Narrow-Line Seyfert 1 Galaxies and Their Place in the Universe", Milano, April 4-6, 2011 (Proceedings of Science, http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=126)

References in corpus (10)

• The slope of the black-hole mass versus velocity dispersion correlation
• The Relationship Between Luminosity and Broad-Line Region Size in Active Galactic Nuclei
• The Third Data Release of the Sloan Digital Sky Survey
• The black hole mass -- stellar velocity dispersion correlation: bulges versus pseudobulges
• M-BH - sigma relation for a Complete Sample of Soft X-ray Selected AGNs
• On the nature of Seyfert galaxies with high [OIII]5007 blueshifts
• Narrow-line Seyfert 1 Galaxies and the M_BH - sigma Relation
• Exploring NLS1 through the physical properties of their hosts
• Narrow-Line Seyfert 1 Galaxies
• An AGN Sample with High X-ray-to-optical Flux Ratio from RASS II.Optical Emission Line Properties of Seyfert 1 Type AGN