{"paper":{"title":"CfA4: Light Curves for 94 Type Ia Supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Amali Vaz, Andras Pal, Andreas Zezas, Andrew S. Friedman, Andrew Szentgyorgyi, Armin Rest, Ben Ripman, Brigitta Sipocz, Claire E. Cramer, Dave Latham, David Kipping, Emilio Falco, Gaspar Bakos, Gautham Narayan, George H. Marion, Gil Esquerdo, Gopakumar Perumpilly, Joel Hartman, Jose Fernandez, Kathy de Kleer, Malcolm Hicken, Manuel A. P. Torres, Mark Everett, Matthew J. Holman, Michael Pahre, Mike Calkins, Nelson Caldwell, Perry Berlind, Peter Challis, Robert Hutchins, Robert P. Kirshner, Scott Wolk, Sonia Keys, Sumin Tang, Ted Groner, Thayne Currie, Warren R. Brown, Wayne Peters, W. Michael Wood-Vasey","submitted_at":"2012-05-21T05:49:01Z","abstract_excerpt":"We present multi-band optical photometry of 94 spectroscopically-confirmed Type Ia supernovae (SN Ia) in the redshift range 0.0055 to 0.073, obtained between 2006 and 2011. There are a total of 5522 light curve points. We show that our natural system SN photometry has a precision of roughly 0.03 mag or better in BVr'i', 0.06 mag in u', and 0.07 mag in U for points brighter than 17.5 mag and estimate that it has a systematic uncertainty of 0.014, 0.010, 0.012, 0.014, 0.046, and 0.073 mag in BVr'i'u'U, respectively. Comparisons of our standard system photometry with published SN Ia light curves "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.4493","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"}