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ROBUST OPTICAL RICHNESS ESTIMATION WITH REDUCED SCATTER

ROBUST OPTICAL RICHNESS ESTIMATION WITH REDUCED SCATTER

Reducing the scatter between cluster mass and optical richness is a key goal for cluster cosmology from photometric catalogs. We consider various modifications to the red-sequence-matched filter richness estimator of Rozo et al. implemented on the maxBCG cluster catalog and evaluate the impact of these changes on the scatter in …