From left to right: EW0 distributions for z ~ 3.6, 4.9, and 6.0 with a bin width of 60 Å (gray histograms). One (one) object at z ~ 3.6 (4.9) with EW0> 600 Å is placed at EW0= 600 Å for display purposes. The vertical dashed line indicates EW0= 240 Å (cf. Schaerer 2003; Raiter et al. 2010). The red dashed lines show the best-fit curves of the distributions expressed as N = N0 exp(−EW0/w0), where w0 indicates the best-fit scale factor. The black dashed lines indicate the best-fit curves of the distributions expressed as N = N0 exp(−EW02/2), where σg indicates the best-fit distribution width.
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.