Open Access

Fig. 10

image

Velocity space diagram of He+ torus distributions (red) at different configurations of the solar magnetic field. Corresponding guiding centre velocities of the respective distributions are shown as blue circles. The solar wind speed is shown as a green circle. Evidently, the torus’ guiding centre velocity equals the solar wind speed only for magnetic configurations where φB = ± 90° (see also Fig. 5).

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