Free Access
Fig. 13

Distribution of total H2 column density for different types of clouds: (top left) diffuse molecular clouds with no CO; (top right) 12CO transition molecular clouds; (bottom left) dense molecular clouds with 13CO; and (bottom right) all [C ii] sources. Note that the vertical scale is different in the last panel.
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.