Zoom into reconnection region showing plasmoids and temperature for β = 0.147. This is similar to Fig. 2, but we now show the temporal evolution of the maximum temperature around the reconnection region in panel a and a snapshot of the temperature in panel b that is taken at the time indicated by the blue vertical line in panel a. At this snapshot there are two (resolved) plasmoids present in the reconnection region clearly seen as near-circular regions of enhanced temperature in the middle of panel b. The field of view corresponds to the rectangle indicated in Figs. 2b–d. The blue double-arrow indicates the time of the driving at the bottom boundary; see Sect. 3.1.