{"paper":{"title":"New Constraints on $\\Omega_M$, $\\Omega_\\Lambda$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Conley, A. G. Kim, A. Goobar, A. L. Spadafora, A. S. Fruchter, B. C. Lee, B. Schaefer, C. Lidman, C. R. Pennypacker, D. A. Howell, D. E. Groom, D. Hardin, E. Smith, G. Aldering, G. Blanc, G. Folatelli, G. Garavini, G. Goldhaber, G. Sainton, I. Hook, J. Mendez, J. Raux, K. Garton, K. Schahmaneche, L. Wang, M. Doi, M. S. Burns, M. Sullivan, N. A. Walton, N. Panagia, N. Regnault, N. Yasuda (The Supernova Cosmology Project), P. Astier, P. E. Nugent, P. Ruiz-Lapuente, R. A. Knop, R. Amanullah, R. Ellis, R. Gibbons, R. Pain, R. Quimby, S. E. Deustua, S. Fabbro, S. Garmond, S. Nobili, S. Perlmutter, V. Stanishev, W. M. Wood-Vasey","submitted_at":"2003-09-12T23:32:11Z","abstract_excerpt":"We report measurements of $\\Omega_M$, $\\Omega_\\Lambda$, and w from eleven supernovae at z=0.36-0.86 with high-quality lightcurves measured using WFPC-2 on the HST. This is an independent set of high-redshift supernovae that confirms previous supernova evidence for an accelerating Universe. Combined with earlier Supernova Cosmology Project data, the new supernovae yield a flat-universe measurement of the mass density $\\Omega_M=0.25^{+0.07}_{-0.06}$ (statistical) $\\pm0.04$ (identified systematics), or equivalently, a cosmological constant of $\\Omega_\\Lambda=0.75^{+0.06}_{-0.07}$ (statistical) $\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0309368","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0309368/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"}