{"paper":{"title":"Rapidly Rising Transients in the Supernova - Superluminous Supernova Gap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.CO","authors_text":"Alex Conley, Avishay Gal-Yam, Boaz Katz, Chris J. Pritchet, Chris Lidman, Cristophe Balland, Curtis McCully, D. Andrew Howell, Daniel A. Perley, Delphine Hardin, Dominique Fouchez, Gilad Svirski, Giorgos Leloudas, Iair Arcavi, James Rich, Julien Guy, Kathy Perrett, Lars Bildsten, Mark Sullivan, Nathalie Palanque-Delabrouille, Nicolas Regnault, Pierre Astier, Ray G. Carlberg, Reynald Pain, S. Bradley Cenko, Stefano Valenti, Szymon Prajs, Vanina Ruhlmann-Kleider, William M. Wolf","submitted_at":"2015-11-02T21:05:19Z","abstract_excerpt":"We present observations of four rapidly rising (t_{rise}~10d) transients with peak luminosities between those of supernovae (SNe) and superluminous SNe (M_{peak}~-20) - one discovered and followed by the Palomar Transient Factory (PTF) and three by the Supernova Legacy Survey (SNLS). The light curves resemble those of SN 2011kl, recently shown to be associated with an ultra-long-duration gamma ray burst (GRB), though no GRB was seen to accompany our SNe. The rapid rise to a luminous peak places these events in a unique part of SN phase space, challenging standard SN emission mechanisms. Spectr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00704","kind":"arxiv","version":2},"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"}