{"paper":{"title":"The formation histories of massive and quiescent galaxies in the 3 < z < 4.5 Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Casey Papovich, Claudia Lagos, Colin Jacobs, Corentin Schreiber, Danilo Marchesini, Gabriel Brammer, Glenn G. Kacprzak, Harry Chittenden, Ivo Labbe, James Esdaile, Karl Glazebrook, Kim-Vy H. Tran, Lalitwadee Kawinwanichakij, Lucas C. Kimmig, M. Mart\\`inez-Mar\\`in, Pascal A. Oesch, Rhea-Silvia Remus, Themiya Nanayakkara, Z. Cemile Marsan","submitted_at":"2024-10-02T22:48:06Z","abstract_excerpt":"We present the formation histories of 19 massive ($>3X10^{10}M_\\odot$) quiescent (sSFR$<0.15Gyr^{-1}$) galaxy candidates at z~3.0-4.5 observed using JWST/NIRSpec. This completes the spectroscopic confirmation of the 24 K-selected quiescent galaxy sample from the ZFOURGE and 3DHST surveys (Schreiber et al. 2018a). Utilizing Prism $1-5\\mu m$ spectroscopy, we confirm that all 12 sources that eluded confirmation by ground-based spectroscopy lie at z>3, resulting in a spectroscopically confirmed number density of $\\sim1.4X10^{-5}Mpc^{-3}$ between $z\\sim3-4$. Rest-frame U-V vs V-J color selections s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.02076","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/2410.02076/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"}