Correlation matrix for the parameters and core properties in Table C.1. The correlations of the type r_xx in the white diagonal have been ignored. For r_xy< 0.5, the values are given in the cells for indicative purposes, and have intentionally been made less visible to avoid cluttering the figure with too many insignificant values. The interested reader should be able to see the numbers by zooming in enough on the figure. Each square links to a correlation plot stored in the online database. (Interactive image with hyperlinks available in the PDF version.)