339 citations · 636 across the 4 of their papers we have counts for
4 papers
Fe II Diagnostic Tools for Quasars
E. Verner, F. Bruhweiler, D. Verner +3
The enrichment of Fe, relative to alpha-elements such as O and Mg, represents a potential means to determine the age of quasars and probe the galaxy formation epoch. To explore how…
Revisited abundance diagnostics in quasars: Fe II/Mg II ratios
E. Verner, F. Bruhweiler, D. Verner +2
Both the Fe II UV emission in the 2000- 3000 A region [Fe II (UV)] and resonance emission line complex of Mg II at 2800 A are prominent features in quasar spectra. The observed Fe…
An Atlas of Computed Equivalent Widths of Quasar Broad Emission Lines
Kirk Korista, Jack Baldwin, Gary Ferland +1
We present graphically the results of several thousand photoionization calculations of broad emission line clouds in quasars, spanning seven orders of magnitude in hydrogen ionizin…
Locally Optimally Emitting Clouds and the Origin of Quasar Emission Lines
Jack Baldwin, Gary Ferland, Kirk Korista +1
The similarity of quasar line spectra has been taken as an indication that the emission line clouds have preferred parameters, suggesting that the environment is subject to a fine…