Temperature (left pair of columns) and vertical velocity (right pair) of the last snapshot of the SSD (left column in each pair) and HD (right column of each pair) time series of the G2V (top pair of rows), K0V (middle), and M2V (bottom) stars. The values of the quantities shown in the colour maps are indicated by the corresponding colour bars (with the same range of values for the SSD and HD panels). The upper panels of each pair of rows shows the surface at τ = 1; the lower panel, a vertical cut at the middle of the snapshot. The location of the iso-τ surface and the vertical cut are shown as black solid curves.