Fig. 15.

Colour-colour diagram used for selection of the post-AGB candidates (same as in Fig. 1). The main post-AGB candidate area is above the black lines. The grouped class of objects (see text for details) from Jones et al. (2017) are plotted with different symbols. The numbers in parentheses show the total number of each class of object plotted in this figure.
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.