Searching for precursor activity of Type IIn supernovae A. Reguitti, G. Pignata, A. Pastorello, R. Dastidar, D. E. Reichart, J. B. Haislip and V. V. Kouprianov A&A, 686 (2024) A231 Published online: 14 June 2024 DOI: 10.1051/0004-6361/202348679