Free Access

Fig. 1


Single sideband WBS spectra of [N ii] 205 μm and [C ii] 158 μm towards W 31C. The νLSR of the H ii region is marked in blue and the velocity of the line-of-sight gas is marked in red. Absorption of N+ traces the warm ionised medium, while the C+ absorption mainly traces the cold neutral medium, and, at 7–10% level also the WIM.

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.