Left panel: evolution of the average kinetic (blue triangles), radiative luminosity (black circles), and Hα filament mass (multicolor stars) measured in simulation RT02. Right panel: the kinetic (multicolor triangle) and radiative (black circle) luminosity as a function of the filament mass. The color marks the time in the simulation. Correlation of ﹩\langle {L}_{{\rm{K}}}\rangle ﹩ (﹩\langle {L}_{{\rm{R}}}\rangle ﹩) with the Hα filament mass for the first 9 Gyr is represented by the solid black (dashed blue) line.