HST/WFC3 F140W image of the central region of the cluster, with the contours of CO(2–1) emission of the eastern (1–2σ) and western (1–4σ) emission peaks (shown as blue and red contours, respectively), and the continuum emission at 94.5 GHz (white contours; 3–24σ). The central blue square and the pink star with four spikes show the position of the AGN and of the star, respectively. The green squares are the positions of IRAC color-selected galaxies in the cluster’s central region. North is up and east is to the left.