{"paper":{"title":"A Detection of $z$~2.3 Cosmic Voids from 3D Lyman-$\\alpha$ Forest Tomography in the COSMOS Field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alex Krolewski, Brian C. Lemaux, Casey W. Stark, Christian Maier, David J. Schlegel, Joseph Hennawi, Khee-Gan Lee, Lidia Tasca, Mara Salvato, Martin White, Olivier Le F\\`evre, Peter E. Nugent, Zarija Luki\\'c","submitted_at":"2017-10-07T01:13:39Z","abstract_excerpt":"We present the most distant detection of cosmic voids ($z \\sim 2.3$) and the first detection of three-dimensional voids in the Lyman-$\\alpha$ forest. We used a 3D tomographic map of the absorption with effective comoving spatial resolution of $2.5\\,h^{-1}\\mathrm{Mpc}$ and volume of $3.15\\times 10^5\\,h^{-3}\\mathrm{Mpc}^3$, which was reconstructed from moderate-resolution Keck-I/LRIS spectra of 240 background Lyman-break galaxies and quasars in a $0.16\\,\\mathrm{deg}^2$ footprint in the COSMOS field. Voids were detected using a spherical overdensity finder calibrated from hydrodynamical simulatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.02612","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}