{"paper":{"title":"The Afterglow of GRB 130427A from 1 to 10^16 GHz","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. A. Volnova, A. Corsi, A. E. Volvach, A. Fruchter, A. Horesh, A. J. Castro-Tirado, A. J. Levan, A. N. Morgan, A. S. Pozanenko, A. V. Filippenko, B. Stecklum, D. A. Kann, D. A. Perley, D. Frail, E. G\\\"o\\u{g}\\\"u\\c{s}, E. Sonbas, J. Greiner, J.-G. Wang, J. Mao, J.-M. Bai, J.-M. Winters, K. I. Clubb, K. Wiersema, L. Chang, M. Bremer, M. Tanga, N. R. Tanvir, S. B. Cenko, S. Klose, S. Schmidl, T. G\\\"uver, W. Zheng, X.-H. Zhao, Y.-X. Xin","submitted_at":"2013-07-16T20:00:02Z","abstract_excerpt":"We present multiwavelength observations of the afterglow of GRB 130427A, the brightest (in total fluence) gamma-ray burst of the past 29 years. Optical spectroscopy from Gemini-North reveals the redshift of the GRB to be z=0.340, indicating that its unprecedented brightness is primarily the result of its relatively close proximity to Earth; the intrinsic luminosities of both the GRB and its afterglow are not extreme in comparison to other bright GRBs. We present a large suite of multiwavelength observations spanning from 300 s to 130 d after the burst and demonstrate that the afterglow shows r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.4401","kind":"arxiv","version":4},"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"}