{"paper":{"title":"Ly$\\alpha$ Emission at $z=7-13$: Clear Ly$\\alpha$ Equivalent Width Evolution Indicating the Late Cosmic Reionization History","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Hiroya Umeda, Kimihiko Nakajima, Masami Ouchi, Minami Nakane, Yechi Zhang, Yi Xu, Yoshiaki Ono, Yuichi Harikane, Yuki Isobe","submitted_at":"2023-12-11T19:33:17Z","abstract_excerpt":"We present the evolution of Ly$\\alpha$ emission derived from 53 galaxies at $z=6.6-13.2$ that are identified by multiple JWST/NIRSpec spectroscopy programs of ERS, GO, DDT, and GTO. These galaxies fall on the star-formation main sequence and are the typical star-forming galaxies with UV magnitudes of $-22.5\\leq M_\\mathrm{UV}\\leq-17.0$. We find that 15 out of 53 galaxies show Ly$\\alpha$ emission at the $>3\\sigma$ levels, and obtain Ly$\\alpha$ equivalent width (EW) measurements and stringent $3\\sigma$ upper limits for the 15 and 38 galaxies, respectively. Confirming that Ly$\\alpha$ velocity offs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.06804","kind":"arxiv","version":3},"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/2312.06804/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"}