Mapping the working of environmental effects in A963 Boris Deshev, Christopher Haines, Ho Seong Hwang, Alexis Finoguenov, Rhys Taylor, Ivana Orlitova, Maret Einasto and Bodo Ziegler A&A, 638 (2020) A126 Published online: 23 June 2020 DOI: 10.1051/0004-6361/202037803