Measurement and assignment of $J$ $\ge$ 10 rotational energy levels in the 9510 to 9810 cm${}^{-1}$ and 6590 to 6900 cm${}^{-1}$ ranges of methane using optical frequency comb double-resonance spectroscopy

Yuan Cao, Adrian Hjältén, Vinicius Silva de Oliveira +4

Accurate models of high temperature methane spectra are needed in astrophysics. Previous measurements of methane hot-band transitions in the $P$6 $\leftarrow$ $P$2 polyad…