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astro-ph2001
Narrow CIV lambda 1549A Absorption Lines in Moderate-Redshift Quasars
M. Vestergaard
A large, high-quality spectral data base of well-selected, moderate-redshift radio-loud and radio-quiet quasars is used to characterize the incidence of narrow associated CIV lambd…
astro-ph2001
An Empirical Ultraviolet Iron Spectrum Template Applicable to Active Galaxies
M. Vestergaard, B. J. Wilkes
Iron emission is often a severe contaminant in optical-ultraviolet spectra of active galaxies. Its presence complicates emission line studies. A viable solution, already successful…