Fig. 9.
Statistical purity weight for each NB (coloured solid lines) as estimated by fitting an error-function to the computed purity. The grey-dotted line shows the computed purity of J0430 NB as an example. All filters show similar purity weights, rising to ≳60% at r ≳ 18.5. This is in agreement with the average purity of our 45 spectroscopic targets (Sect. 3.4.2) which is shown as a purple empty square.
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