{"paper":{"title":"The Palomar Transient Factory Sky2Night programme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"(2) Kavli Institute for Theoretical Physics, 3, (3) Department of Physics, 4), (4) Cahill Center for Astronomy, (5) Center of Cosmology, (6) Instituto de F\\'isica y Astronom\\'ia, (7) Lawrence Berkeley National Laboratory, (8) Spitzer Science Center, Astrophysics, Caltech, Caltech), Chile, D. Levitan (4), J. van Roestel (1), K. Verbeek (1), M. Bours (6), NYU, Particle Physics, P.J. Groot (1), P. Nugent (7), Radboud University Nijmegen, R.R. Laher (8) ((1) Department of Astrophysics/IMAPP, S. Nissanke (1), S.R. Kulkarni (4), S. van Velzen (5), T. Kupfer (2, T. Prince (4), UC Berkley Department of Astronomy, UC Santa Barbara, Universidad de Valpara\\'iso","submitted_at":"2019-02-11T08:20:19Z","abstract_excerpt":"We present results of the Sky2Night project: a systematic, unbiased search for fast optical transients with the Palomar Transient Factory. We have observed 407 deg$^2$ in $R$-band for 8 nights at a cadence of 2 hours. During the entire duration of the project, the 4.2m William Herschel Telescope on La Palma was dedicated to obtaining identification spectra for the detected transients. During the search, we found 12 supernovae, 10 outbursting cataclysmic variables, 9 flaring M-stars, 3 flaring active Galactic nuclei and no extragalactic fast optical transients. Using this systematic survey for "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.03768","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"}