{"paper":{"title":"Dark energy with gravitational lens time delays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A.Fritz, A.I.Zabludoff, C.D.Fassnacht, C.Giocoli, C.R.Keeton, C.S.Kochanek, D.A.Finley, D.A.Howell, D.Zaritsky, E.Buckley-Geer, E.E.Falco, E.Komatsu, E.V.Linder, F.Courbin, F.-Y.Cyr-Racine, G.Dobler, G.Meylan, G.Seidel, J.Hjorth, K.C.Wong, L.A.Moustakas, L.V.E.Koopmans, M.Bradac, M.Oguri, M.Tewes, N.Jackson, P.J.Marshall, P.Natarajan, R.B.Metcalf, R.Cabanac, R.J.Brunner, S.H.Suyu, S.Lopez, T.Anguita, T.Collett, T.Treu, T.Verdugo, V.Motta","submitted_at":"2013-06-06T00:48:21Z","abstract_excerpt":"Strong lensing gravitational time delays are a powerful and cost effective probe of dark energy. Recent studies have shown that a single lens can provide a distance measurement with 6-7 % accuracy (including random and systematic uncertainties), provided sufficient data are available to determine the time delay and reconstruct the gravitational potential of the deflector. Gravitational-time delays are a low redshift (z~0-2) probe and thus allow one to break degeneracies in the interpretation of data from higher-redshift probes like the cosmic microwave background in terms of the dark energy eq"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1272","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"}