C Iλ 1560 rest-frame equivalent width as a function of dust extinction, AV (left panel) and 2175 Å bump strength, Abump (right panel). The blue filled circles denote the GRBs with C I detected in absorption (empty blue circles show the GRBs with C I detected below the completeness limit), where the filled blue left-pointing triangles in the right panel represent the upper limit on Abump derived for the other GRB C I absorbers (assuming an SMC bar extinction curve). The yellow squares show the quasar C I absorbers from Ledoux et al. (2015) and the green diamond symbols represent the quasar 2175 Å dust extinction feature absorbers from Ma et al. (2018). The dashed lines mark the Wr(λ 1560) detection limit and maximum AV and Abump for the GRBs with non-detections of C I.
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.