Free Access

Fig. 13


ADF(O+) and ADF(O++) vs. log(ne). Blue dots represent the values assuming the densities shown in Table 5 of Paper I. Red dots represent the values obtained for ne([S ii]) for all the PNe. Note that although ADF(O++) remains almost unchanged, the ADF(O+) is very sensitive to the assumed density. The line is the correlation found by Robertson-Tessi & Garnett (2005).

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.