HST/ACS F814W (left) image of BRI0952 showing both lensed images of the quasar; Img-N and Img-S correspond to the two images of the quasar BRI0952 and Comp-N and Comp-SW to the companion sources. ALMA 870 μm continuum map (right) was created using line-free channels. The contours are shown at 5, 10, 20, 30, 40, 50, 60, 70, and 80σ levels. The synthesized beam is shown in the bottom left of the ALMA image.