As for Fig. 6, but for the two [O i] fine structure transitions. The blue line shows the estimated level of absorption (negative relative emission) caused by the diffuse gas along the line of sight. It is obtained from the mean of the [C ii] absorption scaled by a factor of 1.6, the ratio of the [O i] 63 μm and [C ii] line opacities for the adopted carbon and oxygen abundances.
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.