WHAT CONTROLS THE Fe II STRENGTH IN ACTIVE GALACTIC NUCLEI? - Dong, Xiao-Bo; Wang, Jian-Guo; Ho, Luis C.; Wang, Ting-Gui; Fan, Xiaohui; Wang, Huiyuan; Zhou, Hongyan; Yuan, Weimin (The Astrophysical journal, 2011)
Keywords: Astronomy; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CORRELATIONS; COSMIC RADIO SOURCES; Earth, ocean, space; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; Exact sciences and technology; GALAXIES; GALAXY NUCLEI; IRON; METALS; QUASARS; RADIATIONS; SEYFERT GALAXIES; TRANSITION ELEMENTS; ULTRAVIOLET RADIATION; Black holes; Equivalent width; Luminosity; Column density; Accretion disks; Continuum; Light emission; galaxies: active; Active galaxy nuclei; Galaxy nuclei; Abundance ratio; Chemical evolution; Emission line; Sky surveys; Quasars; quasars: emission lines; quasars: general; Accretion; Line formation; Line widths; Active galaxies; Line intensity; line: formation; Correlations; Physical parameter; Cosmology; Seyfert 1 galaxies