Extent of the Lyα halo and it’s brightness versus the six obtained shell-model parameters. The upper and central rows show the Kron radius (in kpc) and the line flux (with ) as a function of the fitting parameters (see Sect. 3.3 for more details). The lower row shows the flux ratio between 3 × and 1 × R_Kron. The color coding corresponds again to the “confidence” category (blue, green, red in increasing order). Also shown in each panel are the Spearman correlation coefficients.