SN 2023ixf: Interaction signatures in the spectrum at 445 days Gastón Folatelli, Lucía Ferrari, Keila Ertini, Hanindyo Kuncarayakti and Keiichi Maeda A&A, 698 (2025) A213 Published online: 17 June 2025 DOI: 10.1051/0004-6361/202554128