Sample properties. Parent sample formed by the 44 targets that meet the selection criteria (empty and solid blue circles) and the 25 objects selected for the MUSE-ALMA sample (filled blue circles), including Arp220 (green) and IZw1 (red). See text for selection details. Left: interacting class classification, according to the Veilleux et al. (2002) scheme, vs. contribution of the AGN to the total luminosity, according to method 6 of Veilleux et al. (2009). The vertical green line distinguishes between interacting galaxies and mergers in a more simplified classification; the horizontal line is used to separate SB and AGN targets. Right: redshift vs. IR luminosity. For IZw1 the bolometric luminosity is considered instead of L_IR.