ATCA spectra and integrated CO maps for detections with S/N > 5. Spectra panels: CO(1−0) lines are highlighted in green and fit by a single Gaussian profile shown by a blue curve. Reference names in Emonts et al. (2016) and Dannerbauer et al. (2017) are highlighted in blue when available. Image panels: optical images of 25″ × 25″ in size overlaid with CO(1−0) intensity contours. In general, images are taken from the HST F814W data (Miley et al. 2006), while VLT K_s (Dannerbauer et al. 2014) and Subaru z-band images (Koyama et al. 2013) are indicated as text in the upper right corner. Contours start at 2σ in steps of 1σ.