{"paper":{"title":"Lowly polarized light from a highly magnetized jet of GRB 190114C","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Gomboc, C. G. Mundell, C. Guidorzi, D. A. H. Buckley, E. S. Gorbovskoy, I. A. Steele, M. Marongiu, M. Shrestha, N. Jordana-Mitjans, N. M. Budnev, R. J. Smith, R. Martone, R. Rebolo, S. Kobayashi, V. Lipunov","submitted_at":"2019-11-19T19:00:05Z","abstract_excerpt":"We report multi-color optical imaging and polarimetry observations of the afterglow of the first TeV- detected gamma-ray burst, GRB 190114C, using RINGO3 and MASTER II polarimeters. Observations begin 31 s after the onset of the GRB and continue until $\\sim 7000\\,$s post-burst. The light curves reveal a chromatic break at $\\sim 400- 500\\,$s, with initial temporal decay $\\alpha = 1.669 \\pm 0.013$ flattening to $\\alpha \\sim 1$ post-break, which we model as a combination of reverse and forward-shock components, with magnetization parameter $R_{\\rm B} \\sim 70$. The observed polarization degree dec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.08499","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1911.08499/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}