BAL QSOs from SDSS DR3 (Trump+, 2006)

Details BAL QSOs from SDSS DR3 (Trump+, 2006) BAL QSOs from SDSS DR3 (Trump+, 2006)

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..21650001t&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/165/1. Originally published in: 2006ApJS..165....1T

Physics

Qsos, Redshifts

Scientific paper

We present a total of 4784 unique broad absorption line quasars from the Sloan Digital Sky Survey Third Data Release (Cat. ). An automated algorithm was used to match a continuum to each quasar and to identify regions of flux at least 10% below the continuum over a velocity range of at least 1000km/s in the CIV and MgII absorption regions. The model continuum was selected as the best-fit match from a set of template quasar spectra binned in luminosity, emission line width, and redshift, with the power-law spectral index and amount of dust reddening as additional free parameters. We characterize our sample through the traditional balnicity index and a revised absorption index, as well as through parameters such as the width, outflow velocity, fractional depth, and number of troughs.
(1 data file).

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