FeII/MgII, [Fe/Mg] Ratios and High-z Quasars

(2) Space Telescope Science Institute; (3) Space Telescope - European Coordinating Facility); Kirk Korista (1); Michael Corbin (2); Nalaka Kodituwakku (1); Wolfram Freudling (3) ((1) Western Michigan University

arxiv: astro-ph/0311126 · v1 · submitted 2003-11-05 · 🌌 astro-ph

FeII/MgII, [Fe/Mg] Ratios and High-z Quasars

Kirk Korista (1) , Nalaka Kodituwakku (1) , Michael Corbin (2) , Wolfram Freudling (3) ((1) Western Michigan University , (2) Space Telescope Science Institute , (3) Space Telescope - European Coordinating Facility) This is my paper

classification 🌌 astro-ph

keywords ratioabundanceemissionfeiilinemgiimodelsquasars

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It has been suggested in the literature that the (Fe/alpha) abundance ratio may be used as a chronometer, due to a delay in this ratio reaching its solar value as predicted by galactic chemical evolution models. Using grids of photoionization models along a sequence of the (Fe/Mg) abundance ratio vs.\ metallicity with time in a giant elliptical starburst scenario, we investigate the relationship between the (Fe/Mg) abundance ratio and the FeII/MgII emission line flux ratio under the assumption that these lines originate in photoionized clouds within the broad emission line regions of quasars.

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FeII/MgII, [Fe/Mg] Ratios and High-z Quasars

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