{"paper":{"title":"LOFAR MSSS: Discovery of a 2.56 Mpc giant radio galaxy associated with a disturbed galaxy group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"A. Bonafede, A. Horneffer, A. J. Stewart, A. J. van der Horst, A. M. M. Scaife, A. O. Clarke, A. Rowlinson, A. Shulevski, B.S. Nikiel-Wroczynski, C. J. Riseley, C. Tasse, D. Carbone, D. D. Mulcahy, E. Orru, G. Heald, G. Kokotanekov, H. J. A. Rottgering, J. D. Bray, J. H. Croston, J. J. Harwood, J. P. McKean, J. Sabater, J. S. Farnes, J. W. Broderick, K. Sendlinger, L. K. Morabito, L. Pratley, M. Brienza, M. Iacobelli, M. J. Hardcastle, M. Pandey-Pommier, M. Pietka, M. W. Wise, R. J. van Weeren, R. Paladino, R. P. Breton, R. Pizzo, S. S. Sridhar, S. van Velzen, T. Jarrett, T. M. Cantwell, V. Heesen, W. Jurusik","submitted_at":"2017-02-06T11:29:43Z","abstract_excerpt":"We report on the discovery in the LOFAR Multifrequency Snapshot Sky Survey (MSSS) of a giant radio galaxy (GRG) with a projected size of $2.56 \\pm 0.07$ Mpc projected on the sky. It is associated with the galaxy triplet UGC 9555, within which one is identified as a broad-line galaxy in the Sloan Digital Sky Survey (SDSS) at a redshift of $0.05453 \\pm 1 \\times 10^{-5} $, and with a velocity dispersion of $215.86 \\pm 6.34$ km/s. From archival radio observations we see that this galaxy hosts a compact flat-spectrum radio source, and we conclude that it is the active galactic nucleus (AGN) respons"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01571","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"}