{"paper":{"title":"Direct evidence for an early reionization of the Universe?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) STScI, (3) NOAO/Tucson, (4) JPL), B. Mobasher (1), D. Stern (4), H.C. Ferguson (2), M. Dickinson (3), M. Giavalisco (2), N. Panagia (1), S.M. Fall (2), T. Wiklind (1) ((1) ESA/STScI","submitted_at":"2005-09-20T20:30:24Z","abstract_excerpt":"We examine the possible reionization of the intergalactic medium (IGM) by the source UDF033238.7-274839.8 (hereafter HUDF-JD2), which was discovered in deep {\\it HST}/VLT/{\\it Spitzer} images obtained as part of the Great Observatory Origins Deep Survey and {\\it Hubble} Ultra-Deep Field projects. Mobasher et al (2005) have identified HUDF-JD2 as a massive ($\\sim6\\times10^{11}M_\\odot$) post-starburst galaxy at redshift z$\\gtrsim6.5$. We find that HUDF-JD2 may be capable of reionizing its surrounding region of the Universe, starting the process at a redshift as high as z$\\approx 15 \\pm5$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509605","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"}