Fig. 2.
Map of the S/N per spatial pixel of the Hα+[N II] emission in logarithmic scale. The S/N refers to the integrated continuum-subtracted spectrum in the waveband of Hα+[N II] emission. The map illustrates the filamentary structure of the ionised gas distribution, with the contours showing the isophotes of integrated light from Fig. 1. North is up, and east is left.
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