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P. McKean, J. W. Broderick, L. B\\^irzan, L. E. H. Godfrey, L. Pratley, M. de Vries, M. Iacobelli, M.J. Hardcastle, M. Pandey-Pommier, M. Wise, R. J. van Weeren, R. P. Breton, R. Pizzo, S. S. Sridhar, V. N. Pandey, W. Jurusik","submitted_at":"2017-06-01T09:29:45Z","abstract_excerpt":"We present a new analysis of the widely used relation between cavity power and radio luminosity in clusters of galaxies with evidence for strong AGN feedback. We study the correlation at low radio frequencies using two new surveys - the First Alternative Data Release of the TIFR GMRT Sky Survey (TGSS ADR1) at 148 MHz and LOFAR's first all-sky survey, the Multifrequency Snapshot Sky Survey (MSSS) at 140 MHz. 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