{"paper":{"title":"OMEGA AND BIASING FROM OPTICAL GALAXIES VERSUS POTENT MASS","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Dekel, J. A. Willick, M. J. Hudson, S. Courteau, S. M. Faber","submitted_at":"1995-01-19T23:47:03Z","abstract_excerpt":"The mass density field in the local universe, recovered by the POTENT method from peculiar velocities of $\\sim$3000 galaxies, is compared with the density field of optically-selected galaxies. Both density fields are smoothed with a Gaussian filter of radius 12 $h^{-1}$ Mpc. Under the assumptions of gravitational instability and a linear biasing parameter $b\\sbo$ between optical galaxies and mass, we obtain $\\beta\\sbo \\equiv \\om^{0.6}/b\\sbo = 0.74 \\pm 0.13$. This result is obtained from a regression of POTENT mass density on optical density after correcting the mass density field for systemati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9501074","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"}