Open Access
Fig. 4
Download original image
Specific sky regions that are discussed in more detail in the text. They correspond to (1) the Magellanic clouds, (2) the HII regions S2-27 and S2-7, (3) the Smith high-velocity cloud, (4) the Sagittarius arm region, and the north (5) and south (6) Galactic poles. We have used the logarithmic H-α EM data as the background.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.