Fig. 10.
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Comparison between the original data cube, the PCA-enhanced cube, and the continuum-subtracted data cube. Each panel shows the 262.888 GHz channel corresponding to −10 km s−1 (blueshifted) of the CH2NH (4–3) transition, adopting a redshift of 0.0129 for IC 860. The left panel displays the original data cube, the center the PCA-enhanced cube, and the right the continuum-subtracted cube. The center image is given in weight and the two other panels in mJy beam−1.
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