2D histograms showing the emissivity distribution of each ion as a function of gas temperature and number density for the Maelstrom halo at z = 0.5. The dark blue background indicates all gas, while the colored pixels highlight regions where emission from that ion is present. The sharp cutoff at ﹩{\mathrm{log}}_{10}T=3﹩ arises because the minimum temperature included in the CLOUDY emissivity tables is ﹩{\mathrm{log}}_{10}T=3﹩, as this is the minimum temperature we expect to find in the CGM and we do not focus on ISM emission in this work.