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Fig. 7

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Map of the region between the Sun and Sco-Cen. The grey-shaded areas represent the dust map from Edenhofer et al. (2024) projected onto the XY-plane; the blue-shaded areas (brighter closer to the Galactic plane) show the Local Bubble map (−50 < Z < 50 pc; O’Neill et al. 2024) based on the same dust map. The red rectangle highlights the position of an H I cloud. The orange stars show the positions of the objects from Redfield & Linsky (2008); brighter orange stars represent measurements with multiple velocity components. The larger blue stars indicate the positions (d = ϖ−1) of our calcium-probing (mostly B-type) stars. The two arrows in the bottom-right corner show the directions towards the Galactic centre (up) and the Galactic rotation (left). The bar in the bottom-left corner (length of 100 pc) serves as a distance scale. Coloured arrows display the direction of the flows probed by different data, with the scatter in the arrows highlighting the uncertainty in the distance towards the corresponding flow component – any of these arrows can be picked to represent the flow vector. The displayed velocity values are in km s−1. In the case of the cloud, we have no knowledge of its tangential motion. We note that the Ca II flow is based on spectra with unresolved kinematic sub-structure.

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