{"paper":{"title":"The JCMT Gould Belt Survey: A First Look at Southern Orion A with SCUBA-2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Chrysostomou, A. Duarte-Cabral, B.C. Matthews, C.J. Davis, C. Mowat, C. Salji, D. Bresnahan, D. Johnstone, D. Nutter, D. Robertson, D. Rumble, D.S. Berry, D. Ward-Thompson, E. Drabek-Maunder, E. Rosolowsky, G.A. Fuller, G. Joncas, G.J. White, G. Moriarty-Schieven, H. Broekhoven-Fiene, H. Butner, H. Kirk, H. Thomas, J. Buckle, J.C. Mottram, J. Di Francesco, J.E. Pineda, J. Fiege, J. Greaves, J. Gregson, J. Hatchell, J.M. Kirk, J. Rawlings, J. Richer, J. Wouterloot, J. Yates, K. Marsh, K. Pattle, L.B.G. Knee, M. Chen, M. Fich, M.J. Currie, M.R. Hogerheijde, M. Zhu, N. Tothill, P. Bastien, P. Friberg, R. Friesen, S. Coud\\'e, S. Graves, S. Sadavoy, Steve Mairs, S. Viti, T. Jenness, W. Holland","submitted_at":"2016-06-28T20:00:07Z","abstract_excerpt":"We present the JCMT Gould Belt Survey's first look results of the southern extent of the Orion A Molecular Cloud ($\\delta \\leq -5\\mathrm{:}31\\mathrm{:}27.5$). Employing a two-step structure identification process, we construct individual catalogues for large-scale regions of significant emission labelled as islands and smaller-scale subregions called fragments using the 850 $\\mu$m continuum maps obtained using SCUBA-2. We calculate object masses, sizes, column densities, and concentrations. We discuss fragmentation in terms of a Jeans instability analysis and highlight interesting structures a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.08854","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":""},"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"}