{"paper":{"title":"Radio spectra and sizes of ALMA-identified submillimetre galaxies: evidence of age-related spectral curvature and cosmic ray diffusion?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A.C. Edge, A.M. Swinbank, A.P. Thomson (JBCA & Durham), A.W. Blain, B. Gullberg, C.C. Chen, C. Simpson, D. Farrah, D. Maltby, E.A. Cooke, E. Ibar, E.J. Murphy, F. An, Ian Smail, J.L. Wardlow, J.M. Simpson, M.J. Michalowski, O. Almaini, P. van der Werf, S. Stach, U. Dudzeviciute, V. Arumugam, W. Hartley, W. Rujopakarn","submitted_at":"2019-04-18T18:00:00Z","abstract_excerpt":"We analyse the multi-frequency radio spectral properties of $41$ 6GHz-detected ALMA-identified, submillimetre galaxies (SMGs), observed at 610MHz, 1.4GHz, 6GHz with GMRT and the VLA. Combining high-resolution ($\\sim0.5''$) 6GHz radio and ALMA $870\\,\\mu$m imaging (tracing rest-frame $\\sim20$GHz, and $\\sim250\\,\\mu$m dust continuum), we study the far-infrared/radio correlation via the logarithmic flux ratio $q_{\\rm IR}$, measuring $\\langle q_{\\rm IR}\\rangle=2.20\\pm 0.06$ for our sample. We show that the high-frequency radio sizes of SMGs are $\\sim1.9\\pm 0.4\\times$ ($\\sim2$-$3$kpc) larger than tho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.08944","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/1904.08944/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"}