False-color image of SPT-CL J0546–5345

False-color image of SPT-CL J0546–5345 at z = 1:067. Gemini GeMS/GSAOI Ks (this work) = red, HST ACS F814W = green, HST ACS F606W = blue. The red polygon shows the approximate sky coverage of the GSAOI pointings. PSF stars are indicated by white circles. The star near the top of the image with two circles is a binary star. The inset at lower left is a zoom-in of the cluster core. The scale bars at lower right of the inset and full image show the angular and physical projected distances at the cluster redshift. The red, green and blue spots on the scale bar in the inset show the PSF FWHM for each band. N is up and E is left. Credit: Gemini Observatory/AURA