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Fig. 4


Radial velocity maps. Left: map of the narrow component of the Hα line. This map is representative of all other narrow-line maps (e.g., narrow [O iii] λ5007, [O i] λ6300, [S ii] λ6717). Right: map of the He i λ7065 line. This map is representative of other broad-line maps (e.g., [O iii] λ4363, broad Hα). Contours are the monochromatic intensity of the corresponding emission-line from decreasing intensity intervals of 2 × 10-17 erg cm2 s-1 in peak intensity for Hα and 10-18 erg cm2 s-1 for He i. Only pixels above 3σ of the noise are shown for He i. In both panels, north is up and east is to the left.

This figure is made of several images, please see below:

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