{"paper":{"title":"Large-scale structure in COBE-normalized cold dark matter cosmogonies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Bharat Ratra (MIT & Kansas), Carlos S. Frenk (Durham), David H. Weinberg (Ohio), Shaun Cole (Durham)","submitted_at":"1997-02-10T14:35:29Z","abstract_excerpt":"We study the clustering of the mass distribution in COBE-normalized open and flat CDM models using large N-body simulations. With an age of the universe of 14 Gyr (12 Gyr) for the flat (open) models and a baryon density fixed by nucleosynthesis constraints, the observed abundance of rich galaxy clusters leads to tight constraints on the density parameter; 0.25<Omega_0<0.4 (0.4<Omega_0<0.5) for flat (open) models. The upper limits on Omega_0 can be relaxed if one lowers the H_0 and increases the age of the universe, but h<0.25 is required to allow Omega_0=1. The constraints also change if one a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9702082","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"}