Open Access
Fig. 12
Download original image
PDF of the logarithmic column-density ŋ with statistical error-bars for m = 2 and the two estimates 
and 
respectively in blue and red. This emphasizes that error bars should not be derived from Poisson statistics and that the accuracy of the low and high end parts of the PDF are degraded by the small sample size.
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.