{"paper":{"title":"Epeak estimator for Gamma-Ray Bursts Observed by the Swift Burst Alert Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. M. Parsons, C. B. Markwardt, D. Hullinger, D. M. Palmer, D. Q. Lamb, E. E. Fenimore, G. Sato, H. A. Krimm, J. R. Cummings, J. Tueller, L. Barbier, M. Stamatikos, N. Gehrels, S. D. Barthelmy, T. N. Ukwatta, T. Sakamoto","submitted_at":"2008-11-20T19:41:22Z","abstract_excerpt":"We report a correlation based on a spectral simulation study of the prompt emission spectra of gamma-ray bursts (GRBs) detected by the Swift Burst Alert Telescope (BAT). The correlation is between the Epeak energy, which is the peak energy in the \\nu F_\\nu spectrum, and the photon index (\\Gamma) derived from a simple power-law model. The Epeak - \\Gamma relation, assuming the typical smoothly broken power-law spectrum of GRBs, is \\log Epeak = 3.258 - 0.829\\Gamma (1.3 < \\Gamma < 2.3). We take into account not only a range of Epeak energies and fluences, but also distributions for both the low-en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3401","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"}