KS relation for selected runs (nP, pa3, pa7 with blue, green and red curves, respectively, with lighter colours for the runs with four times higher spatial resolution) from the gasLow_fb (left), gasHigh_fb (middle) and gasHigh_d_fb (right) simulations at 16 different times in colour. The evolution in time is shown with arrows. The 16 different times are equally spaced between t_start = 25 Myr and t_end = 400 Myr. The circle shown corresponds to t_end of the simulation with the corresponding colour. Data from Daddi et al. (2010) for the starburst (dashed line) and quiescent (solid line) sequences are overplotted for reference. For all the simulations, independently of the gas fraction, the simulations with external pressure lie closer to the starburst sequence than the no-pressure simulations. This shows that our toy model for AGN-induced star formation might be a possible explanation for explaining the increased number of starburst galaxies observed in the distant Universe.