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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 421629.0, MPI für Astronomie / Publikationen_mpia
The Sloan Digital Sky Survey quasar lens search. II. Statistical lens sample from the Third Data Release
Authors:Inada, Naohisa; Oguri, Masamune; Becker, Robert H.; Shin, Min-Su; Richards, Gordon T.; Hennawi, Joseph F.; White, Richard L.; Pindor, Bartosz; Strauss, Michael A.; Kochanek, Christopher S.; Johnston, David E.; Gregg, Michael D.; Kayo, Issha; Eisenstein, Daniel; Hall, Patrick B.; Castander, Francisco J.; Clocchiatti, Alejandro; Anderson, Scott F.; Schneider, Donald P.; York, Donald G.; Lupton, Robert; Chiu, Kuenley; Kawano, Yozo; Scranton, Ryan; Frieman, Joshua A.; Keeton, Charles R.; Morokuma, Tomoki; Rix, Hans-Walter; Turner, Edwin L.; Burles, Scott; Brunner, Robert J.; Sheldon, Erin Scott; Bahcall, Neta A.; Masataka, Fukugita
Date of Publication (YYYY-MM-DD):2008
Title of Journal:The Astronomical Journal
Start Page:496
End Page:511
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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 deg2), 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 lensed images larger than 10-0.5. We construct a statistical sample of 11 lensed quasars. Ten of these are galaxy-scale lenses with small image separations (~ 1''-2'') and one is a large separation (15'') system which is produced by a massive cluster of galaxies, representing the first statistical sample of lensed quasars including both galaxy- and cluster-scale lenses. The Data Release 3 spectroscopic quasars contain an additional 11 lensed quasars outside the statistical sample.
Free Keywords:cosmology: observations; gravitational lensing; quasars: general
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL: [ID No:1]
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