Topological changes in the magnetic field of LQ Hya during an activity minimum J. J. Lehtinen, M. J. Käpylä, T. Hackman, O. Kochukhov, T. Willamo, S. C. Marsden, S. V. Jeffers, G. W. Henry and L. Jetsu A&A, 660 (2022) A141 Published online: 02 May 2022 DOI: 10.1051/0004-6361/201936780