{"paper":{"title":"The MOSDEF Survey: The Mass-Metallicity relationship and the existence of the FMR at z~1.5","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alice E. Shapley, Alison L. Coil, Bahram Mobasher, Brian Siana, Francesca M. Fornasini, Gene C. K. Leung, Guillermo Barro, Irene Shivaei, Jordan N. Runco, Laura de Groot, Mariska Kriek, Michael W. Topping, Mojegan Azadi, Naveen A. Reddy, Ryan L. Sanders, Sedona H. Price, Tara Fetherolf, Tom Zick, William R. Freeman","submitted_at":"2021-03-16T18:00:04Z","abstract_excerpt":"We analyze the rest-optical emission-line ratios of z~1.5 galaxies drawn from the MOSFIRE Deep Evolution Field (MOSDEF) survey. Using composite spectra we investigate the mass-metallicity relation (MZR) at z~1.5 and measure its evolution to z=0. When using gas-phase metallicities based on the N2 line ratio, we find that the MZR evolution from z~1.5 to z=0 depends on stellar mass, evolving by $\\Delta\\rm log(\\rm O/H)\\sim0.25$ dex at $M_*<10^{9.75}M_{\\odot}$ down to $\\Delta\\rm log(\\rm O/H)\\sim0.05$ at $M_*>10^{10.5}M_{\\odot}$. In contrast, the O3N2-based MZR shows a constant offset of $\\Delta\\rm "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.09245","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/2103.09245/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"}