Comparison between the value of the λ_e parameter derived directly from the N-body data (using Eq. (1)) and the one estimated through Eq. (B1) of Emsellem et al. (2007) using (V/σ)_e (Eq. (4) here), for the 200 projections of our remnants and the original galaxies. The dashed line marks the 1:1 relation. The projections corresponding to the same model are plotted with the same color. (This figure is available in color in electronic form.)