Lyα emission spectral properties (from top to bottom: FWHM, halo/core FWHM ratio, asymmetry parameter aasym, halo/core aasym ratio and peak separation) plotted against its spatial properties (from left to right: scale lengths, scale length ratio, flux, halo flux fraction). The larger symbols indicate the six S/NHALO > 10 objects. Spearman rank correlation coefficients ρs and corresponding p0 values are shown in each panel. In order to ease the reading, the rows are numbered from 1 to 5 and the columns designated by letters from a to d. Open circles dots represent the objects for which the core/halo Lyα lines are not statistically different in terms of width, peak position and asymmetry parameter (see Sect. 5.4).
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