{"paper":{"title":"Detection of the Pulsar Wind Nebula HESS J1825-137 with the Fermi Large Area Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Possenti, A. Van Etten, C. M. Espinoza, F. Camilo, G. Theureau, I. Cognard, J. A. Hinton, J. E. Grove, J. Lande, J. L. Skilton, L. Guillemot, M.-H. Grondin, M. Kramer, M. Lemoine-Goumard, P. C. C. Freire, P. Michelson, P. Weltevrede, R. W. Romani, S. Funk, S. Johnston","submitted_at":"2011-06-01T14:15:10Z","abstract_excerpt":"We announce the discovery of 1 - 100 GeV gamma-ray emission from the archetypal TeV pulsar wind nebula HESS J1825-137 using 20 months of survey data from the Fermi Large Area Telescope (LAT). The gamma-ray emission detected by the LAT is significantly spatially extended, with a best-fit rms extension of sigma = 0.56{\\deg} $\\pm$ 0.07{\\deg} for an assumed Gaussian model. The 1 - 100 GeV LAT spectrum of this source is well described by a power-law with a spectral index of 1.38 $\\pm$ 0.12 $\\pm$ 0.16 and an integral flux above 1 GeV of (6.50 $\\pm$ 0.21 $\\pm$ 3.90) x 10^{-9} cm^{-2} s^{-1}. The firs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.0184","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"}