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Elucidating the Correlation of the Quasar Fe II/Mg II Ratio with Redshift

Verner, E; Peterson, Bruce


Interpretation of the Fe II(UV)/Mg II emission ratios from quasars has a major cosmological motivation. Both Fe and Mg are produced by short-lived massive stars. In addition, Fe is produced by accreting white dwarf supernovae somewhat after star formation begins. Therefore, we expect that the Fe/Mg ratio will gradually decrease with redshift. We have used data from the Sloan Digital Sky Survey to explore the dependence of the Fe II(UV)/ Mg II ratio on redshift and on luminosity in the redshift...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/422389


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