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Fig. 8

image

Top panels: intensity and velocity map of HI lines obtained from SINFONI data. The intensity map is obtained by measuring the sum of the intensity of the HI lines in each pixel, and the velocity map is obtained from the cross-correlation function of the image using a correlation mask. Bottom panels: intensity and velocity maps of model. Box1 and box2 identify the two consecutive blobs that are used to build the geometrical model of the wiggling, as discussed in the text.

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