{"paper":{"title":"Through Thick and Thin: The Cosmic Evolution of Disk Scale Height","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andreas L. Faisst, Anton M. Koekemoer, Aryana Haghjoo, Can Xu, Ghassem Gozaliasl, Jacqueline McCleary, Jeyhan S. Kartaltepe, John D. Silverman, Kartik Sheth, Lilan Yang, Luis C. Ho, Marc Huertas-Company, Maximilien Franco, Rafael C. Arango-Toro, Richard Massey, Si-Yue Yu, Takafumi Tsukui, Xuheng Ding, Zhaoxuan Liu","submitted_at":"2026-01-08T14:43:01Z","abstract_excerpt":"To investigate the formation and evolution of vertical structures in disk galaxies, we measure global $\\operatorname{sech}^2$ scale heights, averaging thin and thick components when present, for 2631 edge-on disk galaxies with $M_*>10^{10} M_\\odot$ at $0<z<3.5$ from the JWST COSMOS-Web survey. We show that dust extinction systematically overestimates scale heights at shorter rest-frame wavelengths, and therefore adopt a fixed rest-frame wavelength of 1 $\\mu$m. After further correcting for projection-induced bias using a new accurate method, we find that the median disk scale height increases f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.04988","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/2601.04988/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"}