High-resolution laboratory study of the ν2/ν4 bending motion of CH3+ and assignment of its astronomically observed lines

Open Access

Fig. 1

Top: experimental LOS spectrum of the ν₂/ν₄ bending vibrations of ${C H}_{3}^{+}$ $Mathematical equation: $\[\mathrm{CH}_{3}^{+}\]$$ . Bottom: comparison with a spectroscopic simulation performed at a temperature of 80 K. The two bands are marked in red and blue according to their main contribution. See text for more details. The experimental LOS spectrum is available as supplementary material.

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