The newly formed diatomic molecules initially have a very high vibrational temperature that efficiently transforms the vibrational energy into radiant energy; i . e ., radiative heat flux.
2.
The rotational-vibrational temperature ranges from 1800 K in a cometary knot located in the inner region of the nebula are about 2.5 & prime; ( arcmin ) from the central PNN, calculated at about 900 K in the outer region at the distance of 5.6 & prime;.
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