Constraints on the magnetic field in the intercluster bridge A399–A401M. Balboni, A. Bonafede, G. Bernardi, D. Wittor, F. Vazza, A. Botteon, E. Carretti, T. Shimwell, V. Vacca and R. J. van WeerenA&A, 679 (2023) A107DOI: https://doi.org/10.1051/0004-6361/202346303