Notes. The values of RMS indicated are computed from the position of multiply imaged galaxies in the image plane, n_const and n_free correspond to the number of constraints passed to Lenstool and the number of free parameters to be optimized, respectively. The coordinates Δα and Δδ are in arcsec with respect to the following reference points: A1689: α = 197°52′23″, δ = −1°20′28″, A2390: α = 328°24′12″, δ = 17°41′45″, A2667: α = 357°54′51″, δ = −26°05′03″ A2744: α = 3°35′11″, δ = −30°24′01″. The ellipticity e, is defined as (a² − b²)/(a² + b²), where a and b are the semi-major and the semi-minor axes of the ellipse. The position angle, θ, provides the orientation of the semi-major axis of the ellipse measured counterclockwise with respect to the horizontal axis. Finally, r_core, r_cut, and σ₀ are the core radii, cut radii, and central velocity dispersion, respectively.

References. (1) Limousin et al. (2007), (2) Pello et al. (1991), (3) Richard et al. (2010), (4) Pello et al. (in prep.), (5) Covone et al. (2006), and (6) the gold model from Mahler et al. (2018).