Emission Line Properties of Active Galactic Nuclei from a Post‐COSTARHubble Space TelescopeFaint Object Spectrograph Spectral Atlas

Joanna K. Kuraszkiewicz, Paul J. Green, D. Michael Crenshaw, Jay Dunn, Karl Forster, Marianne Vestergaard, Tom L. Aldcroft
2004 Astrophysical Journal Supplement Series  
We present consistent emission-line measurements for active galactic nuclei (AGNs), useful for reliable statistical studies of emission line properties. This paper joins a series including similar measurements of 993 spectra from the Large Bright Quasar Survey and 174 spectra of AGNs obtained from the Faint Object Spectrograph (FOS) on the Hubble Space Telescope (HST ) prior to the installation of COSTAR. This time we concentrate on 220 spectra obtained with the FOS after the installation of
more » ... installation of COSTAR, completing the emission line analysis of all FOS archival spectra. We use the same automated technique as in previous papers, which accounts for Galactic extinction, models blended optical and UV iron emission, includes Galactic and intrinsic absorption lines, and models emission lines using multiple Gaussians. We present UV and optical emission line parameters (equivalent widths, fluxes, FWHM, and line positions) for a large number (28) of emission lines including upper limits for undetected lines. Further scientific analyses will be presented in subsequent papers.
doi:10.1086/379809 fatcat:gpimnvvqm5c7rifxbwzjaj27aa