Combinations of rest-frame optical morphological measurements, used in the literature as diagnostics of galaxy past and current history. G^{SB − rP20S} vs. M20 (upper left), A vs. C^minA (upper right), and A vs. S (lower right). The lower left panel shows stellar mass vs. the rest-frame UV G^{SB − rP20S}. The typical value of G^{SB − rP20S} = 0.4 for the strongest Lyα emitters of the sample by Law et al. (2012) is reported as a red star. The twelve LARS galaxies analysed here are presented as squares, LARS-LAEs are rounded by open circles. The colour scale corresponds to EW(Lyα). For comparison, green stars correspond to the Frei et al. (1996) sample of normal galaxies and light blue triangles correspond to the ULIRG sample of Borne et al. (2000) as processed by Lotz et al. (2004). Black triangles correspond to a sample of starburst galaxies presented in Conselice (2003). Dashed and solid lines correspond to the separation between ULIRGs and normal galaxies, proposed by Lotz et al. (2004) and Lotz et al. (2008) respectively (see text).