Chandra centres for COSMOS X-ray galaxy groups: differences in stellar properties between central dominant and offset brightest group galaxies - Gozaliasl, G; Finoguenov, A; Tanaka, M; Dolag, K; Montanari, F; Kirkpatrick, C; Vardoulaki, E; Khosroshahi, H; Salvato, M; Laigle, C; McCracken, H; Ilbert, O; et al. (Monthly Notices of the Royal Astronomical Society, 2018)