Various abundance ratios as a function of O++/(O+ + O++) for PNe and H ii regions in NGC 300. PNe are represented by circles, compact H ii regions by stars and giant H ii regions by squares. The big red star is object no. 39, the big black circle is object no. 74 (see Sect. 4), and the big black star is object no. 57 (see Sect. 3.3). The objects represented by open circles are objects 12, 88 and 109 (see Sect. 3.4).
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.