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Fig. 8


Spectrum of the H2 2.1218 μm line in IRAS 17208-0014 centered one spaxel (0.125′′) south of the core, where García-Burillo et al. (2015) found an outflow in CO(2–1). The spectrum was extracted against a circular aperture with an area of 13 pixels, and therefore includes the strong nuclear near-IR continuum emission. Plotted on the y-axis is the ratio of the emission-line flux and the continuum flux. The dashed line shows the best-fit model of the narrow-component disk. No convincing outflow is seen in H2. The emission in the gray shaded area, which stretches from –1000 to –500 km s-1 and is affected by noise and continuum features, comprises an H2 mass of ~110 M. This is a factor of four below the firm upper limit that we derive for an H2 outflow in IRAS 17208-0014 (see text for details).

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