{"paper":{"title":"JWST spectroscopy of $z\\sim 5-8$ UV-selected galaxies: New constraints on the evolution of the Ly$\\alpha$ escape fraction in the reionization era","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Charlotte Mason, Daniel P. Stark, Lily Whitler, Mengtao Tang, Michael W. Topping, Ryan Endsley, St\\'ephane Charlot, Zuyi Chen","submitted_at":"2023-11-22T20:34:17Z","abstract_excerpt":"We describe {\\it JWST}/NIRSpec prism measurements of Ly$\\alpha$ emission in $z\\gtrsim 5$ galaxies. We identify Ly$\\alpha$ detections in 10 out of 69 galaxies with robust rest-optical emission line redshift measurements at $5\\leq z<7$ in the CEERS and DDT-2750 observations of the EGS field. Galaxies at $z\\simeq 6$ with faint continuum (F150W $=$ 27--29 mag) are found with extremely large rest-frame Ly$\\alpha$ equivalent widths (ranging up to 286 A). Likely Ly$\\alpha$ detections are also seen in two new $z>7$ galaxies ($z=$ 7.49 and 7.17) from the second epoch of CEERS observations, both showing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.13683","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/2311.13683/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"}