Emission line profile maps for the 28SiO(ν= 2, J = 8−7) line computed from the absorption corrected data cube. The left panel is the map of the amplitude of the best fit Gaussian, the middle panel the width of the emission line, and the right panel is the radial velocity. The systemic velocity determined from the line profile fitting is subtracted from the velocity map. The equivalent uniform disk size of the ALMA continuum emission is represented with a green circle, and the beam is shown in the lower left corner of each panel.
This figure is made of several images, please see below:
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