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Fig. 3


Left: contours of the broad-component H2 emission from Fig. 1 (levels: 0.7, 1.3, 2.0, 2.8, 4.0 × 10-17 erg s-1 cm-2) overlaid onto an optical image taken with the HST/WFPC2 F814W724−878 nm wide-band filter. Middle: contours of the broad-component H2 emission overlaid onto a 3-color near-IR image of the same region taken with the HST/NICMOS2 (filters: blue = F160W1.4−1.8 μm, green = F212N2.111−2.132 μm, red = F237M2.29−2.44 μm). Top right: VLT/SINFONI spectrum obtained against the region of peak H2 emission in region A (aperture 13 pixels). Visualized are the regions of the HST/NICMOS F212N narrow-band (2.1112.132 μm) and F237M medium-band filter (2.292.44 μm). The F237M filter includes the prominent H2 10 Q(1) and Q(2) lines. The F160W wide-band filter (1.41.8 μm) covers the VLT/SINFONI H-band spectrum of this object, with [Fe II] as the most prominent emission-line in this spectral region (see Piqueras López et al. 2012a). Right bottom: region A as observed in the three different NICMOS filters. The arrows point to the region with enhanced H2 emission in both the VLA/SINFONI and HST/NICMOS F237M data.

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