{"paper":{"title":"The Detection of [O III]$\\lambda$4363 in a Lensed, Dwarf Galaxy at $z$ = 2.59: Testing Metallicity Indicators and Scaling Relations at High Redshift and Low Mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"1), (2) Infrared Processing, (3) Universit\\'e Lyon 1, (4) University of Arizona), Anahita Alavi (2, Analysis Center, Breanna Lucero (1) ((1) University of California Riverside, Brian Siana (1), Christopher Snapp-Kolas (1), Daniel P. Stark (4), Johan Richard (3), Najmeh Emami (1), Timothy Gburek (1), William R. Freeman (1)","submitted_at":"2019-06-27T18:00:05Z","abstract_excerpt":"We present Keck/MOSFIRE and Keck/LRIS spectroscopy of A1689-217, a lensed (magnification $\\sim7.9$), star-forming (SFR $\\sim$ 16 $\\rm M_\\odot\\ yr^{-1}$), dwarf (log($M_\\ast/M_\\odot$) = $8.07-8.59$), Ly$\\alpha$-emitter ($\\rm EW_0\\sim138$ A) at $z$ = 2.5918. Dwarf galaxies similar to A1689-217 are common at high redshift and likely responsible for reionization, yet few have been studied with detailed spectroscopy. We report a 4.2$\\sigma$ detection of the electron-temperature-sensitive [O III]$\\lambda$4363 emission line and use this line to directly measure an oxygen abundance of 12+$\\log$(O/H) ="},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.11849","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/1906.11849/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"}