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Table 1

Upward and downward mass fluxes per umbral dot (computed within 500 km radii) and their ratios at various optical depths.

log τ500 M u M u M d M d Mu/Md Mu/Md
PUD CUD PUD CUD PUD CUD
[108 kg/s] [108 kg/s] [108 kg/s] [108 kg/s] [] []

0 600 ± 130 550 ± 120 670 ± 170 500 ± 82 0.89 ± 0.42 1.09 ± 0.41
–1 130 ± 37 150 ± 32 140 ± 36 140 ± 26 0.99 ± 0.53 1.03 ± 0.40
–2 37 ± 12 41 ± 11 33 ± 12 36 ± 7 1.12 ± 0.74 1.13 ± 0.52
–2.5 20 ± 7 22 ± 6 18 ± 7 19 ± 4 1.16 ± 0.83 1.18 ± 0.60

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