{"paper":{"title":"LOFAR MSSS: Detection of a low-frequency radio transient in 400 hrs of monitoring of the North Celestial Pole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.HE","authors_text":"A. Alexov, A. Asgekar, A. Bonafede, A. Corstanje, A. Deller, A. G. Polatidis, A. Horneffer, A. J. Stewart, A. J. van der Horst, A. Karastergiou, A. M. M. Scaife, A. O. Clarke, A. Rowlinson, A. Shulevski, A. W. Gunst, B. Ciardi, B. Scheers, B. W. Stappers, C. A. Sobey, C. Ferrari, C. J. Law, C. Tasse, C. Vocks, D. Carbone, D. McKay-Bukowski, D. Mulcahy, D. Schwarz, E. de Geus, E. Juette, E. Orru, E. Rol, F. Breitling, F. De Gasperin, G. Bernardi, G. Heald, G. J. Molenaar, G. Kokotanekov, G. Kuper, H. Falcke, H. J. A. R\\\"ottgering, H. Munk, H. Paas, H. R. Butcher, I. M. Avruch, J. Anderson, J. C. A. Miller-Jones, J. D. Swinbank, J. E. Conway, J. Eisl\\\"offel, J. H\\\"orandel, J.-M. Grie{\\ss}meier, J. Moldon, J. P. McKean, J. Sluman, J. van Leeuwen, J. W. Broderick, J. W. T. Hessels, L. Pratley, M. A. Garrett, M. Br\\\"uggen, M. C. Toribio, M. E. Bell, M. Hoeft, M. Iacobelli, M. J. Bentum, M. J. Hardcastle, M. J. Norden, M. Kuniyoshi, M. Loose, M. Pandey-Pommier, M. Pietka, M. P. van Haarlem, M. Steinmetz, M. Wise, O. Smirnov, O. Wucknitz, P. Best, P. Jonker, P. Maat, P. Zarka, R. A. M. J. Wijers, R. J. van Weeren, R. McFadden, R. P. Breton, R. P. Fender, R. Vermeulen, R. Wijnands, S. Corbel, S. Duscha, S. J. Wijnholds, S. Markoff, S. Thoudam, S. van Velzen, S. Yatawatta, T. D. Staley, T. E. Hassall, T. L. Grobler, T. Mu\\~noz-Darias, V. Heesen, V. I. Kondratiev, W. Frieswijk, Y. Cendes","submitted_at":"2015-11-30T21:00:02Z","abstract_excerpt":"We present the results of a four-month campaign searching for low-frequency radio transients near the North Celestial Pole with the Low-Frequency Array (LOFAR), as part of the Multifrequency Snapshot Sky Survey (MSSS). The data were recorded between 2011 December and 2012 April and comprised 2149 11-minute snapshots, each covering 175 deg^2. We have found one convincing candidate astrophysical transient, with a duration of a few minutes and a flux density at 60 MHz of 15-25 Jy. The transient does not repeat and has no obvious optical or high-energy counterpart, as a result of which its nature "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.00014","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"}