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Fig. 1.

image

Panel a: blueshifted component of the [Fe II] emission in the H band in IRS 54 from the SINFONI 2014 data. Four spectral channels were averaged from 1.6430 μm (−171 km s−1) to 1.6438 μm (−25 km s−1). Panel b: redshifted component of the [Fe II] emission in the H band in IRS 54 from the SINFONI 2014 data. Four spectral channels were averaged from 1.6440 μm (11 km s−1) to 1.6443 μm (66 km s−1). For reference, the centre black (a) and white (b) contours represent the continuum of the source taken at levels of 0.1, 0.3, 0.5, 0.7 and 0.9.

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