Image thumbnails in a region of 8 × 8 arcsec showing the two galaxies. Images are, from left to right and from top to bottom, HST/I band, UltraVISTA-DR3 Y, J, H and K_s bands, IRAC CH1, CH2, CH3 and CH4, MIPS 24 μm, ALMA Band 7 at ~870μm and VLA 20 cm, as indicated by the labels. In the bottom row we show the MIPS 24 μm, PACS 100 and 160 μm, SPIRE 250, 350 and 500 μm stamps in a more extended region of 60 × 60 arcsec. The green (blue in the ALMA stamp) circle indicates the position of the ALMA-detected SMG and the yellow box shows that of the optically detected source. The cuts in the H and K_s UltraVISTA stamps have been optimized to show the distant galaxy.