Galaxy-Galaxy Lensing in Dark Energy Survey Science Verification Data
ORAL
Abstract
We present galaxy-galaxy lensing results from 150 square degrees of Dark Energy Survey science verification data. Our lens sample consists of red galaxies which are specifically selected to have a low photometric redshift outlier rate. The lenses cover a wide redshift range 0.2 $<$ z $<$ 0.8, which divided into three bins yields a S/N $>$ 20 lensing measurement for each bin. The result is checked by performing a number of null tests, including various checks on the shear catalog and photometric redshifts. Covariances from jackknife subsamples of the data are validated with a suite of 100 mock surveys. We fit an HOD model that constrains the lens sample's central halo mass, mass-luminosity scatter, and satellite population.
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