Metallicity Evolution of Active Galactic Nuclei
| dc.creator | Nagao, Tohru | |
| dc.creator | Maiolino, Roberto | |
| dc.creator | Marconi, Alessandro | |
| dc.date | 2006-12-20 | |
| dc.date.accessioned | 2026-07-07T07:36:10Z | |
| dc.date.available | 2026-07-07T07:36:10Z | |
| dc.description | In this contribution we report our recent investigation of the gas metallicity in active galactic nuclei and its dependence on luminosity and redshift. We compile large spectroscopic datasets of broad-line and narrow-line AGNs, and compare them with the results of our photoionization models. Through the analysis of both the broad and the narrow emission-line regions, we find that: (1) for a given luminosity, there is no redshift dependence of the gas metallicity; (2) for a given redshift, there is a significant correlation between gas metallicity and luminosity; (3) the luminosity-metallicity relation does no show any evolution in the redshift range 2 < z < 4. | |
| dc.description | 4 pages, 2 figures, Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", ed. L. C. Ho and J.-M. Wang (San Francisco: ASP) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0612570 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0612570 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/120335 | |
| dc.subject | Astrophysics | |
| dc.title | Metallicity Evolution of Active Galactic Nuclei | |
| dc.type | text |