Fig. 1
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Spatial coverage of our observations. The data extend ∼32 pc to the Galactic east and west of Sgr A★ (marked as a red plus symbol), about 1 pc to the Galactic north and south, except for the centre region, which extends about 2 pc to the Galactic north. The image is a white light reconstructed image mosaic of our spectroscopic scans.
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