{"paper":{"title":"Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alex Reda, Alex S. Hill, Andre Renard, Anna Ordog, Arash Mirhosseini, Ava Polzin, Carolin H\\\"ofer, CHIME Collaboration, Dallas Wulf, Donald V. Wiebe, Gary Hinshaw, Haochen Wang, Joseph Kania, Joshua MacEachern, J. Richard Shaw, Juan Mena-Parra, Keith Vanderlinde, Kevin Bandura, Kiyoshi Masui, Laura Newburgh, Mandana Amiri, Mark Halpern, Mateus Fandino, Matt Dobbs, Meiling Deng, Nikola Milutinovic, Saurabh Singh, Seth R. Siegel, Simon Foreman, Tianyue Chen, T.L. Landecker, Tristan Pinsonneault-Marotte, Ue-Li Pen","submitted_at":"2022-02-02T19:00:11Z","abstract_excerpt":"We present a detection of 21-cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Radio observations acquired over 102 nights are used to construct maps which are foreground filtered and stacked on the angular and spectral locations of luminous red galaxies (LRG), emission line galaxies (ELG), and quasars (QSO) from the eBOSS clustering catalogs. We find decisive evidence for a detection when stacking on all three tracers of LSS, with the logarithm of the Bayes Factor equal to 18.9 (LRG), 10.8 (ELG), a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.01242","kind":"arxiv","version":1},"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/2202.01242/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"}