Large-scale dynamos in rapidly rotating plane layer convection P. J. Bushby, P. J. Käpylä, Y. Masada, A. Brandenburg, B. Favier, C. Guervilly and M. J. Käpylä A&A, 612 (2018) A97 Published online: 04 May 2018 DOI: 10.1051/0004-6361/201732066