{"paper":{"title":"Happy Birthday Swift: Ultra-long GRB141121A and its broad-band Afterglow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Corsi, A. Cucchiara, A. Horesh, A. Lien F. E. Marshall, A. M. Watson, A. S. Kutyrev, C. G. Roman-Zuniga, C. Pagani, C. R. Klein, D. A. Frail, D. A. Perley, E. Ramirez-Ruiz, E. Troja, H. Moseley, J. A. de Diego, J. Gonzalez, J. I. Capone, J. S. Bloom, J. X. Prochaska, L. Georgiev, M. G. Richer, M. Modjaz, N. Gehrels, N. R. Butler, O. D. Fox, O. M. Littlejohns, P. Veres, S. B. Cenko, V. L. Toy, W. H. Lee","submitted_at":"2015-10-04T23:14:46Z","abstract_excerpt":"We present our extensive observational campaign on the Swift-discovered GRB141121A, al- most ten years after its launch. Our observations covers radio through X-rays, and extends for more than 30 days after discovery. The prompt phase of GRB 141121A lasted 1410 s and, at the derived redshift of z = 1.469, the isotropic energy is E{\\gamma},iso = 8.0x10^52 erg. Due to the long prompt duration, GRB141121A falls into the recently discovered class of UL-GRBs. Peculiar features of this burst are a flat early-time optical light curve and a radio-to-X-ray rebrightening around 3 days after the burst. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.00996","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"}