Longitudes in degrees shown on the horizontal axis. The vertical axis gives the co-latitudes in degrees. Here, B_r is given in [nT], the density from COCONUT in normalised units, and tomography in normalised units, from top to bottom, respectively. All quantities are plotted at 5 R_⊙. The left panel shows results for the COCONUT simulation with the heating function from Eq. (7), the middle panel shows the results with the heating from Eq. (8), and the right includes the heating function from Eq. (9).