Fig. 2
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13 CO tomography in false color with superimposition of the tomographies (black contours) of HCN 4-3, CS 7-6, and CN at 340.348 GHz; p-H2CO at 218.222 GHz; and DCN 3-2 and N2D+ 3-2. Contours are in steps of 1.5 K for HCN, CS, CN, and p-H2CO; 0.75 K for DCN; and 0.375 K for N2D+. The gray ellipses indicate the impact of line width on the effective beam at 80 and 240 au
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