Forces extracted from the 1D cut at 1.5 R_⊙ (blue semicircles in Fig. 4) in the cases of slow (black line) and faster background solar wind (red line). The force densities (top to bottom) are the following: plasma pressure gradient (−∇P_P), magnetic pressure gradient (−∇P_B), magnetic tension (T_B), and total force (F_total). The dashed blue lines indicate the interface between slow and fast wind, here referred to as latitudinal components of the same background wind simulation. The dashed green lines represent peaks in −∇P_P in the faster-wind case (here referred to as the separate simulation case), which is identified by the white circles in Fig. 4.