Open Access

Table 3

Column densities.

Molecule Nmol
cm−2
CH3OCH3 ≤ (2.3 ± 1.4) × 1015
CH3CCH (1.4 ± 0.9) × 1015
H2CO (7.3 ± 12) × 1013
SO2 (3.2 ± 3.2) × 1015
HC18O+ (7.1 ± 2.7) × 1012

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