Emission for a model condensation at constant pressure (n_e = 3  ×  10⁸   cm^-3 at 10⁶ K). The top panel shows the assumed temperature drop as a function of time. The bottom panel displays the resulting emission as would be observed in four of the AIA bandpasses assuming a contribution of 1 Mm along the line of sight for the condensation. A background corresponding to an active region emission measure distribution was added. The vertical dotted lines indicate the times when the temperature of maximum response is reached for the four channels (See Sect. 3.3.).