Temperature response functions Λ_i(T) for the AIA and MUSE channels. Top: MUSE spectrometer lines: Fe IX 171 Å, Fe XV 284 Å, and Fe XIX 108 Å. Middle: AIA 94 Å (containing Fe XVIII line), 131 Å, 171 Å, 193 Å, 211 Å, and 335 Å channels. Bottom: expected response function of the 94 Å AIA channel (black line) after the subtraction of the cold component (dotted line) obtained by combination of 131 Å, 171 Å, 193 Å, 211 Å, and 335 Å AIA channels from the total one (light green).