Fig. 2.
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(a) Stack of six NIRSpec slices at the emission peaks from 3.28975 to 3.31302 μm revealing extended emission around Chiron’s nucleus, indicating a CH4 coma. (b) Individual data cube slice at 3.29691 μm, in between emission peaks of CH4 gas, shows no extension beyond a PSF (see Section 3.2 for details). Both (a) and (b) have the same sky plane dimensions and the projected directions of the Sun and velocity direction are shown.
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