ZTF-observed late-time signals of pre-ZTF transients Jacco H. Terwel, Kate Maguire, Jesper Sollerman, Phil Wiseman, Tracy X. Chen, Matthew J. Graham, Russ R. Laher, Reed Riddle and Niharika Sravan A&A, 697 (2025) A143 Published online: 14 May 2025 DOI: 10.1051/0004-6361/202452198