{"paper":{"title":"Weak Lensing Results from the 75 Square Degree CTIO Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Jain, D. Smith, D. Wittman, G. Bernstein, J.A. Tyson, M. Jarvis, P. Fischer","submitted_at":"2002-10-28T19:59:26Z","abstract_excerpt":"We measure seeing-corrected ellipticities for 2 x 10^6 galaxies with magnitude R<23 in 12 widely separated fields totalling 75 deg^2 of sky. At angular scales >30\\arcmin, ellipticity correlations are detected at high significance and exhibit nearly the pure \"E-mode\" behavior expected of weak gravitational lensing. Even when smoothed to the full field size of 2.5 degrees, which is ~25h^-1 Mpc at the lens distances, an rms shear variance of <\\gamma^2>^1/2 = 0.0012 +- 0.0003 is detected. At smaller angular scales there is significant \"B-mode\" power, an indication of residual uncorrected PSF disto"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0210604","kind":"arxiv","version":2},"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"}