Proposed field geometry for the inner 0.7 kpc of the central disk, as seen in projection under different inclinations. The black vectors depict the component in the xy-plane of the disk; the red vectors show the component in the z-direction vertical to the disk. The green vectors show the vector addition of both components. a) In-plane component of the vector field seen face-on. The spiral pitch angle is φ = 33°. b) Out-of-plane “divergence-free” component of the vector field seen edge-on. We observe the field at an inclination. The far side is depolarized at 6.2 cm, so that only the near side is visible to us (indicated by the grey-scale). c) Spiral (black) and vertical (red/brown) components of the field in the sky plane seen under the inclination i = 43° and the position angle PA = 70°. Only the near side is visible to us. The kinematically receding side is to the northeast. d) Full vector field of the near side, as seen at 6.2 cm under the inclination i = 43° and the position angle PA = 70°. Contours of Fig. 1d> are underlaid for comparison. For better perceptibility, the lowest contour is filled yellow.