Top, left: gas density and mean poloidal stream lines. The red dotted line corresponds to the Alfvénic surface, and the red dashed line corresponds to the fast magneto-sonic surface. The colour of the poloidal stream lines correspond to the logarithm of their magnitude normalised to the sound speed. Top, right: RB_φ normalised to B_iR_in; and mean poloidal field lines. The grey square corresponds to the zoomed in region the bottom figure. Bottom: same as top but zoomed in the greyed region. The black dashed line indicates the surface where ⟨β⟩ = 8π⟨P⟩/⟨B⟩² = 1.