{"paper":{"title":"The Palomar Transient Factory: System Overview, Performance and First Results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"A. Gal-Yam, A. Pickles, A. Rau, A.V. Filippenko, C.C. Grillmair, D.A. Howell, D.B. Fox, D. Ciardi, D. Hale, D. McKenna, D. Poznanski, D. Starr, E. Croner, E.O. Ofek, G. Helou, G. Rahmer, J.C. van Eyken, J. Jacobsen, J.R. Henning, J.S. Bloom, J. Surace, J. Zolkower, L. Bildsten, M.M. Kasliwal, M. Shara, M. Sullivan, N. Hamam, N.M. Law, P.E. Nugent, R.G. Dekany, R. Laher, R.M. Quimby, R. Smith, R.S. Walters, S.B. Cenko, S.G. Djorgovski, S. Mattingly, S.R. Kulkarni, T. Brown, V. Velur, W. Rosing","submitted_at":"2009-06-30T19:12:54Z","abstract_excerpt":"The Palomar Transient Factory (PTF) is a fully-automated, wide-field survey aimed at a systematic exploration of the optical transient sky. The transient survey is performed using a new 8.1 square degree camera installed on the 48-inch Samuel Oschin telescope at Palomar Observatory; colors and light curves for detected transients are obtained with the automated Palomar 60-inch telescope. PTF uses eighty percent of the 1.2-m and fifty percent of the 1.5-m telescope time. With an exposure of 60-s the survey reaches a depth of approximately 21.3 in g' and 20.6 in R (5 sigma, median seeing). Four "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.5350","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"}