Open Access

Fig. 8.

image

Download original image

Relation between AlIIIλ1860/SiIII]λ1892 and CIII]λ1909/SiIII]λ1892 intensity ratios. The gray area corresponds to the parameter space occupied by xA objects. Outlying sources are shown in pink color.

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.