{"paper":{"title":"SN 2009ip \\'a la PESSTO: No evidence for core-collapse yet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Anders Jerkstrand, Andrea Pastorello, Assaf Sternberg, Avishay Gal-Yam, Brad E. Tucker, Cosimo Inserra, Cristina Knapic, Daniel D.R. Bayliss, Daniel Reichart, David R. Young, Fang Yuan, Filomena Bufano, Francisco F\\\"orster Bur\\'on, Franz Erik Bauer, George Zhou, Giuliano Pignata, Joe P. Anderson, Joshua B. Haislip, Justin P. Moore, Katalin Tak\\'ats, Ken W. Smith, Laurent Le Guillou, Marco Molinaro, Maria-Teresa Botticella, Mark Sullivan, Massimo Turatto, Michael Childress, Morgan Fraser, Ofer Yaron, Paolo Mazzali, Riccardo Smareglia, Rubina Kotak, Sebasti\\'an Marchi, Seppo Mattila, Stefano Benetti, Stefano Valenti, Stephen J. Smartt, Ting-Wan Chen","submitted_at":"2013-03-14T14:06:26Z","abstract_excerpt":"We present observations of the interacting transient SN 2009ip, from the start of the outburst in October 2012 until the end of the 2012 observing season. The transient reached a peak of $M_V$=-17.7 mag before fading rapidly, with a total integrated luminosity of 1.9$\\times10^{49}$ erg over the period of August-December 2012. The optical and near infrared spectra are dominated by narrow emission lines, signaling a dense circumstellar environment, together with multiple components of broad emission and absorption in H and He at velocities between 0.5-1.2$\\times10^4$ km s$^{-1}$\\. We see no evid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.3453","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"}