Scenario II: Temporal evolution of model M8 (A1M1) (left), which uses the dwarf model D1; model M9 (A1M6) using D2 (middle); and model M12 (A1M7) using D4 (right). We show the distances with respect to the centre of mass of the dark matter halo of the younger stellar component (red curve), and to the peak of the gas surface mass density (blue) measured with θ_sky = 0deg to quantify the maximum distances it could reach. We also show the distance between the younger stellar component centre and the gas surface density peak (turquoise). The observed 80 pc offset between the gas density peak and the stellar component in Leo T is indicated with a blue horizontal line (AO18). The 35 pc offset between the younger and older stellar components is shown with the red horizontal line, while the vertical line indicates the lower age estimate of the younger stellar component (de Jong et al. 2008).