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Fig. 9

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PPV maps of filamentary structures at l = 160°, b = 30° in gnomonic projection. The coordinates are identical to those in Fig. 2. Shown are H I eigenvalues λ_ for p in channel maps with a 1 km s−1 channel width at velocities from −4 km s−1 (top left) to 4 km s−1 (bottom right).
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