Free Access

Fig. 13.


Mean values of the ages and masses for the reduced sample of 88 objects (blue dots in Fig. 10) for which interpolation in the Kiel and HR diagrams yield consistent results. Age (mass) of each object is calculated as the geometric (arithmetic) mean of the values yield by the interpolation in each diagram. The vertical dashed line indicates the canonical value of 30 Kyr value beyond which PNe are not expected to survive.

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.