{"paper":{"title":"Megaparsec-scale structure around the proto-cluster core SPT2349$-$56 at $z\\,{=}\\,4.3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Anthony Gonzalez, Axel Weiss, Carlos De Breuck, Cassie Reuter, Chenxing Dong, Christopher C. Hayward, C. M. Bradford, Daniel P. Marrone, Douglas Scott, Joaquin D. Vieira, Justin Spilker, Kaja Rotermund, Katrina Litke, Kedar Phadke, Manuel Aravena, Matthieu Bethermin, Matt Malkan, Rebecca E. A. Canning, Ryley Hill, Scott Chapman, Thomas R. Greve, Yashar Hezaveh, Yordanka Apostolovski","submitted_at":"2020-02-26T16:39:14Z","abstract_excerpt":"We present an extensive ALMA spectroscopic follow-up programme of the $z\\,{=}\\,4.3$ structure SPT2349$-$56, one of the most actively star-forming proto-cluster cores known, to identify additional members using their [C{\\sc ii}] 158\\,$\\mu$m and \\mbox{CO(4--3)} lines. In addition to robustly detecting the 14 previously published galaxies in this structure, we identify a further 15 associated galaxies at $z\\,{=}\\,4.3$, resolving 55$\\,{\\pm}\\,$5\\,per cent of the 870-$\\mu$m flux density at 0.5\\,arcsec resolution compared to 21\\,arcsec single-dish data. These galaxies are distributed into a central c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.11600","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/2002.11600/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"}