A multi-wavelength view of the multiple activity cycles of ϵ Eridani B. Fuhrmeister, M. Coffaro, B. Stelzer, M. Mittag, S. Czesla and P. C. Schneider A&A, 672 (2023) A149 Published online: 14 April 2023 DOI: 10.1051/0004-6361/202245201