{"paper":{"title":"Discovery of a damped Ly$\\alpha$ absorber originating in a spectacular interacting dwarf galaxy pair at $z = 0.026$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Claude-Andr\\'e Faucher-Gigu\\`ere, Emmanuel Momjian, Erin Boettcher, Fakhri S. Zahedy, Fran\\c{c}oise Combes, Gregory L. Walth, Gwen C. Rudie, Gyula I. G. J\\'ozsa, Hsiao-Wen Chen, Jens-Kristian Krogager, Kathy L. Cooksey, Mandy C. Chen, Marc Rafelski, Neeraj Gupta, Pasquier Noterdaeme, Patrick Petitjean, Raghunathan Srianand, S. A. Balashev, Sean D. Johnson, Sebastian Lopez, Sebastiano Cantalupo","submitted_at":"2022-02-09T19:00:04Z","abstract_excerpt":"We present the discovery of neutral gas detected in both damped Ly$\\alpha$ absorption (DLA) and HI 21-cm emission outside of the stellar body of a galaxy, the first such detection in the literature. A joint analysis between the Cosmic Ultraviolet Baryon Survey and the MeerKAT Absorption Line Survey reveals an HI bridge connecting two interacting dwarf galaxies (log$(M_{\\text{star}}/\\text{M}_{\\odot}) = 8.5 \\pm 0.2$) that host a $z = 0.026$ DLA with log[$N$(HI)/cm$^{-2}$]$ = 20.60 \\pm 0.05$ toward the QSO J2339-5523 ($z_{\\text{QSO}} = 1.35$). At impact parameters of $d = 6$ and $33$ kpc, the dwa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.04669","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/2202.04669/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"}