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Fig. A.2.

image

Posterior distribution of the parameters of the HerBS-89a lensed source, as obtained by the lens modeling and MCMC runs (see Sect. 5 for details). The constraints are given on the following parameters: the position (ΔRA and ΔDec in arcsec), the Einstein radius (b), the ellipticity (e), the scale radius (Rs), the position angle (θe) with the orientation measured east of north and the Sérsic index (n). See Fig. A.1 for further details.

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