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Fig. 7


Middle: zoom-in of the broad-component H2 emission in IRAS 17208 from Fig. 4. The H2 velocity map of the broad-component emission is shown in color, with overlaid in thick black contours the H2 total-intensity map of the broad component and in thin gray contours the HST/NICMOS image from Fig. 4. Contour levels of the total-intensity maps of the broad component are: 6, 12, 24, 48 × 10-18 erg s-1 cm-2 spaxel-1. The small yellow/black cross (×) marks the center of the galaxy from the HST/NICMOS image, while the large black/yellow crosses (+) mark the location against which we extracted the H2 spectra A and B. Left/right: H2 1–0 S(1) spectra extracted from a region of five pixels (three pixels both E to W and N to S, as marked with the “+” signs in the middle panel). The black line shows a double Gaussian fit, consisting of a narrow (red) and broad (blue) component.

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