{"paper":{"title":"Early results from GLASS-JWST. IV: Spatially resolved metallicity in a low-mass $z\\sim3$ galaxy with NIRISS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adriano Fontana, Alaina Henry, Antonello Calabr\\`o, Benedetta Vulcani, Danilo Marchesini, Gabriel Brammer, Guido Roberts-Borsani, Karl Glazebrook, Kristan Boyett, Lilan Yang, Marco Castellano, Maru\\v{s}a Brada\\v{c}, Matthew A. Malkan, M. Trenti, Nicha Leethochawalit, Patrick L. Kelly, P. Santini, Takahiro Morishita, Tommaso Treu, Tucker Jones, Victoria Strait, Xin Wang","submitted_at":"2022-07-26T18:03:08Z","abstract_excerpt":"We report the first gas-phase metallicity map of a distant galaxy measured with the James Webb Space Telescope (JWST). We use the NIRISS slitless spectroscopy acquired by the GLASS Early Release Science program to spatially resolve the rest-frame optical nebular emission lines in a gravitationally lensed galaxy at $z=3.06$ behind the Abell 2744 galaxy cluster. This galaxy (dubbed GLASS-Zgrad1) has stellar mass $\\sim10^{8.6} M_\\odot$, instantaneous star formation rate $\\sim8.6$ $M_\\odot$/yr (both corrected for lensing magnification), and global metallicity one-fourth solar. From its emission li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.13113","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/2207.13113/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"}