The radio emission from active galactic nuclei J. F. Radcliffe, P. D. Barthel, M. A. Garrett, R. J. Beswick, A. P. Thomson and T. W. B. Muxlow A&A, 649 (2021) L9 Published online: 07 May 2021 DOI: 10.1051/0004-6361/202140791