{"paper":{"title":"Cosmological Constraints from the Large Scale Weak Lensing of SDSS MaxBCG Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"(2) Chicago, (3) BNL, (4) NYU), David H. Weinberg (1), Eduardo Rozo (2), Erin S. Sheldon (3), Jeremy L. Tinker (4), Matthew R. Becker (2) ((1) OSU, Ying Zu (1)","submitted_at":"2012-07-16T20:00:00Z","abstract_excerpt":"We derive constraints on the matter density \\Om and the amplitude of matter clustering \\sig8 from measurements of large scale weak lensing (projected separation R=5-30\\hmpc) by clusters in the Sloan Digital Sky Survey MaxBCG catalog. The weak lensing signal is proportional to the product of \\Om and the cluster-mass correlation function \\xicm. With the relation between optical richness and cluster mass constrained by the observed cluster number counts, the predicted lensing signal increases with increasing \\Om or \\sig8, with mild additional dependence on the assumed scatter between richness and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.3794","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}