BAL QSOs in SDSS-DR5 : J/ApJ/692/758


Authors : Gibson R.R. orcid , Jiang L., Brandt W.N. (hide) , Jiang L., Brandt W.N. et..al

Bibcode : 2009ApJ...692..758G (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Active gal. nuclei; Line Profiles; X-ray sources; Surveys; Equivalent widths
UAT : Active galactic nuclei, Spectroscopy, X-ray sources, Surveys, Line intensities

Compilation (CCC)

Records :

Inserted into VizieR : 21-Mar-2011
Last modification : 30-Jun-2017

A catalog of broad absorption line quasars in Sloan Digital Sky Survey Data Release 5. (2009)

Keywords : galaxies active - galaxies: nuclei - quasars: absorption lines - quasars: emission lines - X-rays: general

Abstract:We present a catalog of 5039 broad absorption line (BAL) quasars (QSOs) in the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) QSO catalog that have absorption troughs covering a continuous velocity range >=2000km/s. We have fitted ultraviolet (UV) continua and line emission in each case, enabling us to report common diagnostics of BAL strengths and velocities in the range -25000 to 0km/s for SiIV1400, CIV1549, AlIII1857, and MgII2799. We calculate these diagnostics using the spectrum listed in the DR5 QSO catalog, and also for spectra from additional SDSS observing epochs when available. In cases where BAL QSOs have been observed with Chandra or XMM-Newton, we report the X-ray monochromatic luminosities of these sources. We confirm and ...(more)
Abstract: (hide)
This BAL catalog is constructed from SDSS DR5 (Adelman-McCarthy et al. 2007, Cat. VII/252). The SDSS uses a CCD camera on a dedicated 2.5m telescope at Apache Point Observatory, New Mexico, to obtain images in five broad optical bands (ugriz) over approximately 10000deg^2^ of the high Galactic latitude sky.


                
Catalogue provenance