{"paper":{"title":"A panchromatic view of the restless SN2009ip reveals the explosive ejection of a massive star envelope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"A. Ginsburg, A. Kamble, A.M. Soderberg, A. Rest, A.S. Friedman, B.A. Zauderer, C.C. Cheung, C. Choi, C. Contreras, C. Fransson, C. Gall, C. Guidorzi, D. Arnett, D. Milisavljevic, E. Berger, E. Chatzopoulos, E. Hsiao, E.M. Levesque, F.B. Bianco, G.H. Marion, G. Leloudas, G. Stringfellow, J.C. Wheeler, J. Hjorth, J. Martin, J.M. Silverman, J. Strader, J. Vinko, K. F. Neugent, K. Murase, L. Chomiuk, M.D. Stritzinger, M. Im, M.M. Phillips, M.R. Drout, N.B. Utterback, N. Chugai, N.E. Sanders, N. Gehrels, N. Morrell, N. Omodei, P. Challis, P. Chandra, P. J. Brown, P. Kuin, P.W.A. Roming, R. Chevalier, R. Chornock, R. Fesen, R.J. Foley, R. Kirshner, R. Lunnan, R. Margutti, S. Campana, T. Pritchard, T. Szalai, W. Fong","submitted_at":"2013-05-31T21:54:24Z","abstract_excerpt":"The 2012 explosion of SN2009ip raises questions about our understanding of the late stages of massive star evolution. Here we present a comprehensive study of SN2009ip during its remarkable re-brightening(s). High-cadence photometric and spectroscopic observations from the GeV to the radio band obtained from a variety of ground-based and space facilities (including the VLA, Swift, Fermi, HST and XMM) constrain SN2009ip to be a low energy (E~ 10^50 erg for an ejecta mass ~ 0.5 Msun) and likely asymmetric explosion in a complex medium shaped by multiple eruptions of the restless progenitor star."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0038","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"}