Results of H2CO abundance models: total flux integrated over the emission rectangle of the observations for different abundances for model 1 (purple), model 2 (blue), and model 3 (red). The fractional abundances with respect to CO for model 2 have been multiplied with 10-4 for easier comparison as the CO/H2 abundance is typically 10-4. The dotted line indicates the measured observed flux, and the gray bar indicates the error on this value based on the flux calibration uncertainty.
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