Open Access
Fig. 7.
Download original image
Same as Fig. 5 but for [O I]/Hα. The [O I]/Hα line ratio is poorly fit because [O I] is a collisionally excited line of neutral oxygen, and as such is only produced by partly ionized and neutral gas, while our model emission lines are dominated by fully ionized gas.
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.