{"paper":{"title":"First results from the Isaac Newton Telescope Wide Angle Survey: The z>5 quasar survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Cambridge), M.J. Irwin, R.G. McMahon, R.G. Sharp, S.T. Hodgkin (Institute of Astronomy","submitted_at":"2001-03-05T19:40:42Z","abstract_excerpt":"We report the first results of an observational program designed to determine the luminosity density of high redshift quasars (z > 5 quasars) using deep multi-colour CCD data. We report the discovery and spectra of 3 i < 21.5 high redshift (z > 4.4) quasars, including one with z > 5. At z=5.17, this is the fourth highest redshift quasar currently published. Using these preliminary results we derive an estimate of the M \\rm_B < - 25.0 (M \\rm_{AB1450} < - 24.5) quasar space density in the redshift range 4.8 < z < 5.8 of 3.6 \\pm2.5\\times 10^{-8} \\Mpc ^{-3} . When completed the survey will provide"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0103079","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"}