{"paper":{"title":"KiDS-450: Enhancing cosmic shear with clipping transformations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alexandra Amon, Benjamin Giblin, Benjamin Joachimi, Catherine Heymans, Fergus Simpson, Hendrik Hildebrandt, Joachim Harnois-D\\'eraps, J\\\"org P. Dietrich, Konrad Kuijken, Ludovic Van Waerbeke, Marika Asgari, Nicolas Martinet, Peter Schneider, Thomas Erben, Tilman Tr\\\"oster","submitted_at":"2018-05-30T17:01:14Z","abstract_excerpt":"We present the first \"clipped\" cosmic shear measurement using data from the Kilo-Degree Survey (KiDS-450). \"Clipping\" transformations suppress the signal from the highest density, non-linear regions of cosmological fields. We demonstrate that these transformations improve constraints on $S_8=\\sigma_8(\\Omega_{\\rm{m}}/0.3)^{0.5}$ when used in combination with conventional two-point statistics. For the KiDS-450 data, we find that the combined measurements improve the constraints on $S_8$ by 17%, compared to shear correlation functions alone. We determine the expectation value of the clipped shear"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.12084","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"}