Journal article

The Sloan Digital Sky Survey Quasar Lens Search. II. Statistical lens sample from the third data release

Naohisa Inada, Masamune Oguri, Robert H Becker, Min-Su Shin, Gordon T Richards, Joseph F Hennawi, Richard L White, Bartosz Pindor, Michael A Strauss, Christopher S Kochanek, David E Johnston, Michael D Gregg, Issha Kayo, Daniel Eisenstein, Patrick B Hall, Francisco J Castander, Alejandro Clocchiatti, Scott F Anderson, Donald P Schneider, Donald G York Show all



We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the SDSS Data Release 3 (4188 deg 2), we select a subsample of 22,683 quasars that are located at redshifts between 0.6 and 2.2 and are brighter than the Galactic extinction-corrected i-band magnitude of 19.1. We identify 220 lens candidates from the quasar subsample, for which we conduct extensive and systematic follow-up observations in optical and near-infrared wavebands, in order to construct a complete lensed quasar sample at image separations between 1″ and 20″ and flux ratios of faint to bright ..

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University of Melbourne Researchers