Fig. 3

Histogram of intrinsic EW as determined from Gaussian fits to the radial profile of those sources where a plateau level was seen. Black dashed line: median value of EW for all sources where the intrinsic EW can be measured (10.6 Å); purple dashed line: median value for diluted sources only (10.3 Å); orange dashed line: for non-diluted sources only (11.1 Å).
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