Fig. 7
Integrated H i map of the emission between 119.6 and 150.4 km s-1 derived from the deep VLA data at 90′′ resolution (gray-scale). Light-gray contours show (5, 10, 20, 50, 100, 200) × 1018 cm-2 column density levels. The noise in the map corresponds to 2 × 1018 cm-2 and the lowest VLA contour corresponds to ~ 2.5σ. Thin black contours show the GBT cloud, thick white contours the 8-kpc filament at 30′′ resolution. Contours as in Fig. 4. The 90′′ VLA beam is indicated in the bottom-right corner, the GBT beam in the bottom-left corner.
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