Formaldehyde as a densitometer and thermometer in Cygnus-X, the GLOSTAR pilot region, and M8 - Utilizing the H2CO ground-state transition

Open Access

Fig. 8

Difference between the gas kinetic temperature of sources in Cygnus-X (purple), the GLOSTAR pilot region (orange), and M8 (blue) using pyradex+emcee compared with the LTE gas kinetic temperature function presented in Tang et al. (2018). The dashed green line marks n(H₂) = 10^5.5 cm⁻³.

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