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Table 2

Hα and Na i D2 average LOS velocities (), standard deviation (σ), and number of points (#) used for the statistics.

Line σ #
[km s-1] [km s-1] points

Filament Hα −0.225 1.220 175322
Na i D2 −0.023 0.606

Spine Hα −0.288 1.133 71087
Na i D2 + 0.010 0.588

Quiet Sun Hα −0.070 1.436 797224
Na i D2 + 0.042 0.622

Notes. Maps 5–7 in Fig. 3 where used for the spine statistics. The average quiet-Sun velocity was computed using maps 1–3 (excluding pixels belonging to the filament and bright points seen in Na i D2).

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