Different timescales computed for the 62 PCEBs in our sample. Open circles are for systems with He-core WDs and crosses for systems with C/O-core WDs. From top to bottom: total time since the systems were born until they become CVs; time the actual PCEBs need to become CVs; cooling time; and time since the systems were born until the CE phase. The dashed line in the top panel correspond to 13.5 × 109 yr.
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.