Fig. 4

image

Total masses and orbital periods at core helium depletion for systems with qi = 1 at four different metallicities. Dashed lines show constant merger times assuming direct collapse into a black hole, and the shaded region indicates the mass range at which PISNe would occur, resulting in the total disruption of the stars instead of black hole formation. The coloured bands represent the relative number of objects formed for each metallicity.

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.