Chemical evolution of active galactic nuclei

Details Chemical evolution of active galactic nuclei Chemical evolution of active galactic nuclei

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007asthe.100..656n&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 100, No. 12, p. 656 - 662 (2007)

Astronomy and Astrophysics

Astronomy

Active Galactic Nuclei

Scientific paper

The recent research activities on the observational study of the metallicity evolution of active galactic nuclei (AGNs) is studied, which is a useful strategy to investigate the history of the cosmic metallicity evolution. Specifically the authors describe their two independent methods to measure metallicity in ionized gas nebulae of AGNs. Both methods result in the same conclusion, that the AGN metallicity positively correlates with the AGN luminosity but this relation does not show any redshift evolution up to z approx. 4.

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