An Imaging and Spectroscopic Survey of Bright Strongly-Lensed Galaxies in the SDSS

Details An Imaging and Spectroscopic Survey of Bright Strongly-Lensed Galaxies in the SDSS An Imaging and Spectroscopic Survey of Bright Strongly-Lensed Galaxies in the SDSS

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009noao.prop..222b&link_type=abstract

NOAO Proposal ID #2009A-0222

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Scientific paper

We propose for WIYN imaging and Mayall spectroscopic follow-up for a sample of 21 very bright, candidate strong lensing systems from the Sloan Digital Sky Survey (SDSS), found as part of our systematic search for potentially lensed bright blue arcs and knots around luminous red galaxies from the SDSS. Our survey has already spectroscopically confirmed 12 strong lensing systems, including 6 among the brightest lensed Lyman break galaxies known at z > 2, including the ``8 o'clock arc.'' We will take advantage of the excellent WIYN image quality to obtain gri color data vital to derive optimal lensing models for our systems, and we also take advantage of the brightness of our lensed galaxies, whose redshifts may be efficiently measured on the Mayall 4m. Overall, we expect to compile a final sample of order 30 spectroscopically confirmed SDSS lensing systems, a large data set which allows us to expand our ongoing follow-up studies of the physical properties of individual bright lensed star-forming galaxies at high redshifts z ~ 1-3. Moreover, this larger sample allows us to better constrain the mass distributions of the group/cluster environments around our z ~ 0.4 red lens galaxies, in a 3''-10'' Einstein radius regime that is complementary to the smaller single- galaxy and larger galaxy-cluster scales probed by other SDSS strong lens data sets.

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