The optical properties of galaxies in the Ophiuchus cluster F. Durret, K. Wakamatsu, C. Adami, T. Nagayama and J. M. Omega Muleka Mwewa Mwaba A&A, 613 (2018) A20 Published online: 25 May 2018 DOI: 10.1051/0004-6361/201731371