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Table 2

Shown gradient maps, depths.

Number Using T maps m Resolution
from positions (g  cm-2)

G12 (1+), (2+) 0.54 010
G23 (2+), (3+) 1.15 010
G34 (3+), (4+) 1.78 010
G45 (4−), (5−) 2.39 017
G56 (5−), (6−) 2.82 017
G67 (6−), (7−) 3.30 017
G57 (5−), (7−) 3.09 017

Notes. The first column is an identifier for the gradient map as used in the text and figures. The second column identifies the filter positions used. The “−” sign identifies images filtered with the low-resolution noise filter and the “+” sign images filtered with the high-resolution noise filter. The third column (m) is the depth in column mass. The last column is the maximum resolution allowed by the noise filter used.

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