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Table B.1

Spectroscopic parameters used in the radiative transfer of the CH (J = 6 − 5) multiplet.

Eu E1 [cm−1] ΔE AE [s−1] Ju gu J1 g1
219.915010 157.138882 62.776128 1.5609 × 10−8 6 39 5 33
219.913337 157.137091 62.776246 2.0894 × 10−8 6 26 5 22
219.915010 157.124300 62.790710 1.3265 × 10−9 6 39 5 33
219.936727 157.138882 62.797845 6.6280 × 10−9 6 39 5 33
219.936727 157.124300 62.812427 1.4037 × 10−9 6 39 5 33
219.941223 157.127890 62.813333 2.6164 × 10−9 6 39 5 33

Notes. Energy levels and Einstein coefficients are from Yurchenko et al. (2024, computed). Pressure-induced broadening parameters for collisions with H2 are γL,0 = 0.015 cm−1 atm−1 and n = 0.84. Spectra were synthesized both without pressure-induced line shift and with (adopting the parameters for HD). For details see text.

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