Top: zoom-in of the H2 outflows from Figs. 2, 3, and 5. The H2 velocity map of the broad-component emission is shown in color, with overlaid in white contours the H2 total-intensity map of the broad component and in black contours the HST/NICMOS image from Figs. 2, 3, and 5. Contour levels of the total-intensity maps of the broad component are: 2, 4, 6, 8, 16 × 10-18 erg s-1 cm-2 spaxel-1 (IRAS 12112+0305); 5, 9, 13, 17 × 10-18 erg s-1 cm-2 spaxel-1 (IRAS 14348-1447); 1, 3, 9, 27 × 10-18 erg s-1 cm-2 spaxel-1 (IRAS 22491-1808). The small cross (×) marks the peak of the IR-emission in the NICMOS image, which is presumably the center of the galaxy. The large cross (+) marks the location where the outflow reaches a maximum velocity at zero intensity, and against which we extracted the H2 spectra shown below. The dashed line represents the direction of the minor axis, as we estimated from the kinematic of the narrow-component disk and the HST/NICMOS imaging (see Appendix A). Bottom: 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 “+” sign above). The black line shows a double Gaussian fit, consisting of a narrow (red) and broad (blue) component.
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