Synthesised fitted line shapes (black solid line) against observations from the Hamburg spectrum (points) for 11 silicon lines for the msc600 model. Grey points were removed before fitting, blue points show areas where sigma-clipping was employed to remove poorly fitting points, and red points were used for determining final fitted quantities. Green lines show the residuals increased by a factor of 10 for readability. In each panel, the name of the line, the reduced χ² value, the width of the broadening kernel w_K, and the LTE abundance log ε_Si are shown. The final weighted mean abundance of 7.57 ± 0.04 includes the −0.01 dex NLTE correction, a fixed continuum, no pre-broadening, and de-broadening.