Evolution of the eccentricities (ẽ, Eq. (6)) of the objects in the solar neighbourhood, for the different Maxwellian kick distributions (σ = 10, 20, 50, 100, 200, and 500 km/s, for each column), shown in 2D histograms with eccentricity bins of 0.05 and time bins of 1 Myr. The top row shows the results using the exponential disc prior, while the bottom row shows the results using the Gaussian annulus prior. The black dashed lines show t = 40 Myr, approximating the timescale after which the median velocities have been decelerated (as shown in Fig. 5). Similar to Fig. 4, we note that the colour-scale differs for each panel, because the number of objects in the solar neighbourhood differs for each kick distribution.