Left: the location of EGS 13011166 in the stellar-mass–star formation rate plane (filled red circle), compared to the overall PHIBSS CO 3–2 survey of z ~ 1–3 SFGs (filled black circles; Tacconi et al. 2013), and the underlying MS of z ~ 1.5–2.5 SFG population as derived in the COSMOS field with the BzK color–magnitude criterion (gray dots; McCracken et al. 2010; Mancini et al. 2011). Right: V (blue) – I (green) – H (red)—three band HST image of EGS 13011166, all on a sqrt( F) color scale. The images were smoothed to ~0 25 FWHM. A–E denote prominent star formation clumps. The small white cross marks the position of the stellar and star formation rate surface density peaks (Figure  2).