New line intensity measurements for 12C2H2 around 7.7 μm and HITRAN format line list for applications

Absolute intensities of 467 lines are measured in 9 bands of the 7.7 μm spectral region of the 12C2H2 molecule, with an average accuracy of 5%. For each band, the vibrational transition dipole moment squared and Herman-Wallis coefficients are obtained in order to model the rotational dependence of the transition dipole moment squared. These results are used to calculate a line list for atmospheric or astrophysical applications. Merged in the line list set up in a previous work for the 8 strongest bands around 7.7 μm [5], these new data give now a quasi-exhaustive view of the 12C2H2 spectrum in the involved spectral region.