{"paper":{"title":"The Collective Voice of Ly$\\alpha$ Emitters: Insights from JWST Stacked Spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Arroyo-Polonio, A. Bhagwat, A. Calabr\\`o, A. M. Koekemoer, B. Ciardi, B. P\\'erez-D\\'iaz, C. Papovich, F. Arevalo-Gonzalez, F. D'Eugenio, G. Gandolfi, H. C. Ferguson, L. Napolitano, L. Pentericci, L. Y. A. Yung, M. Dickinson, M. Hirschmann, M. Llerena, M. S. Oey, Pablo G. Perez-Gonzalez, R. A. Lucas, R. Tripodi, W. Hu, X. Wang","submitted_at":"2026-03-06T15:48:25Z","abstract_excerpt":"We present a spatially resolved stacked analysis of 287 LAEs at $z>4$ observed with JWST/NIRSpec prism spectroscopy. By constructing a two-dimensional stack from public surveys (CAPERS, CEERS, JADES, and RUBIES), we probe the average internal structure of typical LAEs on sub-kiloparsec scales. We find a clear radial decoupling between resonant and non-resonant emission: while EW(H$\\beta$) and other optical lines decline with radius, EW(Ly$\\alpha$) increases toward the outskirts, and the Ly$\\alpha$ escape fraction rises from $\\sim16\\%$ in the center to $\\gtrsim24\\%$ at larger radii. This behavi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.06409","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/2603.06409/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"}