Fig. 2.
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Position-velocity diagram of Paα along the major axis of the galaxy (PA = 25°). The offset is relative to the position of the bright nucleus of GN20 (Colina et al. 2023). The red solid lines show the extraction apertures used for creating the Paα emission line map, while the dashed red lines show the corresponding background map from which we derived the error on the emission line map.
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