T. Anguita, L. F. Barrientos, M. D. Gladders, C. Faure, H. Yee, D. Gilbank
We present the first galaxy scale lens catalog from the second Red-Sequence
Cluster Survey (RCS2). The catalog contains 60 lensing system candidates
comprised of Luminous Red Galaxy (LRG) lenses at 0.2 < z < 0.5 surrounded by
blue arcs or apparent multiple images of background sources. The catalog is a
valuable complement to previous galaxy-galaxy lens catalogs as it samples an
intermediate lens redshift range and is composed by bright sources and lenses
that allow easy follow-up for detailed analysis. Mass and mass-to-light ratio
estimates reveal that the lens galaxies are massive (~5.5x10e11 M_sun/h) and
rich in dark matter (~14 M_sun/L_sun,B*h). Even though a slight increasing
trend in the mass-to-light ratio is observed from z=0.2 to z=0.5, current
redshift and light profile measurements do not allow stringent constraints on
the mass-to-light ratio evolution of LRGs.
View original:
http://arxiv.org/abs/1201.5583
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