{"paper":{"title":"Likelihood Analysis of Cosmic Shear on Simulated and VIRMOS-DESCART Data","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Jain, H.J. McCracken, L. van Waerbeke, R. Pello, U-L. Pen, Y. Mellier","submitted_at":"2002-02-27T16:45:26Z","abstract_excerpt":"We present a maximum likelihood analysis of cosmological parameters from measurements of the aperture mass up to 35 arcmin, using simulated and real cosmic shear data. A four-dimensional parameter space is explored which examines the mean density \\Omega_M, the mass power spectrum normalization \\sigma_8, the shape parameter \\Gamma and the redshift of the sources z_s. Constraints on \\Omega_M and \\sigma_8 (resp. \\Gamma and z_s) are then given by marginalizing over \\Gamma and z_s (resp. \\Omega_M and \\sigma_8). For a flat LCDM cosmologies, using a photometric redshift prior for the sources and \\Gam"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0202503","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0202503/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}