{"paper":{"title":"Void spin distribution as a powerful probe of $\\sigma_{8}$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Geonwoo Kang, Jounghun Lee (Seoul National University)","submitted_at":"2025-01-16T11:27:30Z","abstract_excerpt":"We present a numerical proof of the concept that the void spin distributions can provide a tight constraint on the amplitude of matter density fluctuation on the scale of $8\\,h^{-1}{\\rm Mpc}$ ($\\sigma_{8}$) without being severely deteriorated by the degeneracies of $\\sigma_{8}$ with cold dark matter density parameter multiplied by the dimensionless Hubble parameter square ($\\Omega_{\\rm cdm}h^{2}$), total neutrino mass ($M_{\\nu}$) and dark energy equation of state ($w$). Applying the Void-Finder algorithm~\\cite{HV02} to a total of $15$ AbacusSummit $N$-body simulations of $15$ different cosmolo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.09476","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.09476/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"}