2D slices in the (x, z) plane showing the spatial distributions of temperature and density for shocked plasma between forward and reverse shock at the age of Cas A, based on model W15-IIb-sh-MHD+dec-rl-hr. The panels display (from top to bottom): electron temperature, mass density of shocked plasma (CSM and ejecta), shocked ejecta density, shocked ejecta density with electron temperatures below 1 MK, and shocked shell density. The magenta contour in the second panel from the bottom indicates the shocked shell.