COSMOS brightest group galaxies - III. Evolution of stellar ages G. Gozaliasl, A. Finoguenov, A. Babul, O. Ilbert, M. Sargent, E. Vardoulaki, A. L. Faisst, Z. Liu, M. Shuntov, O. Cooper et al. (8 more) A&A, 690 (2024) A315 Published online: 18 October 2024 DOI: 10.1051/0004-6361/202449543