Line intensity measurements for acetylene between 8980 and 9420 cm-1

- Fourier transform spectroscopy of acetylene between 8980 and 9420 cm−1.
- Line positions and intensities are derived for 432 transitions belonging to 11 bands.
- First intensity information in the considered spectral region.
- Herman-Wallis coefficients reported for eleven bands.

The absorption spectrum of acetylene is studied by high-resolution Fourier-transform spectroscopy (FTS) between 8980 and 9420 cm-1. Positions and intensities of 432 12C2H2 absorption lines are retrieved from a spectrum recorded at room temperature (298.5 K) with a pressure of 87.6 hPa and a 105 m path length. The measured lines belong to 11 bands including three bands observed for the first time. The obtained intensity dataset constitutes the first intensity information in the region. The Herman-Wallis coefficients are derived from a fit of the measured intensity values. The reported results will be valuable to complete the spectroscopic databases of acetylene.