Fig. 4

Cartoon showing the suggested configuration; blue arrows indicate the spin, violet arrows the flow direction. We assume three-component emission, red and blue components from the spinning spicules (dot-dashed, each accounting for 47.5% of the total emission), the third component is the faint upflow along spicules (dashed lines, 5% of the total emission). The Gaussian width of each component is set to a typical value of 35 km s-1. The spectral resolution is 11 km s-1, comparable to a SUMER pixel. The composed emission is shown as the diamonds connected by solid lines.
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