Fig. 4
Marginalised posterior PDF for γext (external shear strength), bP (strength of primary lens in arcseconds), bS (strength of satellite lens in arcseconds) and t (truncation radius of satellite in arcseconds) based on image position modelling. The three shaded areas show the 68.3%, 95.4% and 99.7% credible regions. The halo size of the satellite galaxy is not constrained using image positions.
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