Sub-promille measurements and calculations of CO (3--0) overtone line intensities
- Resource Type
- Working Paper
- Authors
- Bielska, K.; Kyuberis, A. A.; Reed, Z. D.; Li, Gang; Cygan, A.; Ciuryło, R.; Lisak, D.; Adkins, E. M.; Lodi, L.; Hodges, J. T.; Ebert, V.; Zobov, N. F.; Tennyson, J.; Polyansky, O. L.
- Source
- Phys. Rev. Letts., 129, 043002 (2022)
- Subject
- Physics - Chemical Physics
- Language
Intensities of lines in the near-infrared second overtone band (3--0) of $^{12}$C$^{16}$O are measured and calculated to an unprecedented degree of precision and accuracy. Agreement between theory and experiment to better than 1 $\permil$ is demonstrated by results from two laboratories involving two independent absorption- and dispersion-based cavity-enhanced techniques. Similarly, independent Fourier transform spectroscopy measurements of stronger lines in this band yield mutual agreement and consistency with theory at the 1 $\permil$ level. This set of highly accurate intensities can provide an intrinsic reference for reducing biases in future measurements of spectroscopic peak areas.
Comment: main paper plus supporting material