Proper motion (left) and K_s vs. i−K_s CMD (right) projections of cluster and field models and objects in our dataset. Our candidate members in the HMPS are in black triangles and the field objects in grey dots. Grey ellipses delineate the covariance matrices of the field GMM. The cluster model is represented by the MAP (dot-dashed and dashed lines labelled as MAP EMB and MAP Singles corresponding to equal-mass binaries and single stars, respectively) and 100 samples (orange lines) of the posterior distributions.