Redshift evolution of the observed UV luminosity to stellar mass relation. Left: relation between the observed UV luminosity and stellar mass for the Salpeter IMF (red) and evolving IMF (blue). Coloured thick solid lines depict the medians of the distributions of observed UV luminosities (coloured contours) at a given stellar mass. Black solid and dashed lines denote the stellar mass (vertical) and UV luminosity (horizontal) thresholds in the evolving IMF and Salpeter IMF simulations, respectively, below which the stellar masses and observed UV luminosities have not converged for all galaxies due to the mass resolution limit of the VSMDPL simulation. Median values outside the corresponding contours reflect low number statistics. Right: redshift evolution of the observed UV luminosity-to-stellar mass ratio for different stellar mass bins with a width of 1 dex for the Salpeter IMF (dashed lines) and evolving IMF (solid lines) models. The values in the panel show the central value of each stellar mass bin.