{"paper":{"title":"The Gaseous Environments of Radio Galaxies in the Early Universe: Kinematics of the Lyman $\\alpha$ Emission","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G.K. Miley, H.J.A. R\\\"ottgering, R. van Ojik, R.W. Hunstead","submitted_at":"1996-08-14T15:40:51Z","abstract_excerpt":"We present intermediate resolution ($\\sim3$ \\AA ) spectra of the Ly$\\alpha$ emission from 15 high redshift radio galaxies ($z>2$). Together with previously published spectra we analyze data for a sample of 18 objects.\n  In 11 of the 18 radio galaxies we find deep troughs in the Ly$\\alpha$ emission profile, which we interpret as H\\,{\\sc i} absorption with column densities in the range $10^{18}$--$10^{19.5}$ cm$^{-2}$. Since in most cases the Ly$\\alpha$ emission is absorbed over its entire spatial extent (up to 50 kpc), the absorbers must have a covering fraction close to unity. Under plausible "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9608092","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/9608092/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"}