Open Access
Fig. 4
Download original image
Gamma-ray burst efficiency (ηLGRB, Eq. (16)), relative to the maximum efficiency (η0) for different values of κ, a parameter that allows a range of steepness of the metallicity cutoff. The parameter Zth is the central metallicity at which this cutoff occurs.
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.