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The Sloan Bright Arcs Survey : Discovery of Seven New Strongly Lensed Galaxies from z=0.66-2.94

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arxiv 1010.3037 v2 pith:Z2OJY6K4 submitted 2010-10-14 astro-ph.CO

The Sloan Bright Arcs Survey : Discovery of Seven New Strongly Lensed Galaxies from z=0.66-2.94

Jeffrey M. Kubo , Sahar S. Allam , Emily Drabek , Huan Lin , Douglas Tucker , Elizabeth J. Buckley-Geer , H. Thomas Diehl , Marcelle Soares-Santos
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Jiangang Hao Matthew Wiesner Anderson West Donna Kubik James Annis Joshua A. Frieman
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keywords systemsbrightgalaxieslenssourcearcsclusterdiscovery
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We report the discovery of seven new, very bright gravitational lens systems from our ongoing gravitational lens search, the Sloan Bright Arcs Survey (SBAS). Two of the systems are confirmed to have high source redshifts z=2.19 and z=2.94. Three other systems lie at intermediate redshift with z=1.33,1.82,1.93 and two systems are at low redshift z=0.66,0.86. The lensed source galaxies in all of these systems are bright, with i-band magnitudes ranging from 19.73-22.06. We present the spectrum of each of the source galaxies in these systems along with estimates of the Einstein radius for each system. The foreground lens in most systems is identified by a red sequence based cluster finder as a galaxy group; one system is identified as a moderately rich cluster. In total the SBAS has now discovered 19 strong lens systems in the SDSS imaging data, 8 of which are among the highest surface brightness z\simeq2-3 galaxies known.

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