{"paper":{"title":"The LOFAR Two-metre Sky Survey -- V. Second data release","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"A. Bonafede, A. Botteon, A. Danezi, A. Drabent, A. Mechev, A. Offringa, A. Rowlinson, A. Saxena, A. Shulevski, A. Wo{\\l}owska, B. Asabere, B. Hugo, B. Mingo, B. Nikiel-Wroczy\\'nski, C. Garc\\'ia-Vergara, C. Horellou, C. J. Riseley, C. L. Hale, C. Schrijvers, C. Tasse, D. Dallacasa, D. G. Nair, D. J. Bacon, D. J. B. Smith, D. J. Schwarz, D. N. Hoang, D. Rafferty, E. Bonnassieux, E. Orr\\'u, E. Retana-Montenegro, F. De Gasperin, F. Massaro, F. Sweijen, G. Brunetti, G. Calistro Rivera, G. Di Gennaro, G. G\\\"urkan, G. Heald, G. J. White, G. K. Miley, H. E. van Piggelen, H. J. A. R\\\"ottgering, H. Vedantham, H. W. Edler, I. Prandoni, J. B. R. Oonk, J. E. Conway, J. G. Albert, J. H. Croston, J. L. West, J. R. Callingham, J. Sabater, J. Vink, J. Zheng, K. Duncan, K. L. Emig, K. Ma{\\l}ek, K. Rajpurohit, K. T. Chy\\.zy, L. Alegre, L. Bester, L. K. Morabito, M. Bilicki, M. Bonato, M. Brienza, M. Br\\\"uggen, M. Hajduk, M. Haverkorn, M. Hoeft, M. Iacobelli, M. Jamrozy, M. J. Hardcastle, M. Kunert-Bajraszewska, M. Magliocchetti, M. Mevius, M. Vaccari, N. Jackson, O. Smirnov, P. Kukreti, P. N. Best, R. Cassano, R. Cochrane, R. I. J. Mostert, R. J. Dettmar, R. J. van Weeren, R. Kondapally, R. Morganti, R. Timmerman, S. J. Nakoneczny, S. Mandal, S. P. O'Sullivan, T. A. En{\\ss}lin, T. J. Dijkema, T. M. O. Franzen, T. M. Siewert, T. Pasini, T. W. Shimwell, U. Pajdosz-\\'Smierciak, V. Cuciti, V. Heesen, V. Jeli\\'c, V. Mahatma, W. L. Williams, X. Zhang, Y. G. Grange, Z. Meyer-Zhao","submitted_at":"2022-02-23T19:00:10Z","abstract_excerpt":"In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at approximately 12h45m +44$^\\circ$30' and 1h00m +28$^\\circ$00' and spanning 4178 and 1457 square degrees respectively. The images were derived from 3,451hrs (7.6PB) of LOFAR High Band Antenna data which were corrected for the direction-independent instrumental properties as well as direction-dependent ionospheric distortions during extensive, but fully automated, data processing. A catalogue of 4,396,228 radio sources is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.11733","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/2202.11733/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"}