Collision-induced rototranslational spectra of H2-He from an accurate ab initio dipole moment surface

Details Collision-induced rototranslational spectra of H2-He from an accurate ab initio dipole moment surface Collision-induced rototranslational spectra of H2-He from an accurate ab initio dipole moment surface

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrva..34.2771m&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 34, Oct. 1986, p. 2771-2779.

Physics

General Physics

52

Dipole Moments, Helium, Hydrogen, Molecular Collisions, Molecular Rotation, Vibrational Spectra, Absorptivity, Spectral Correlation, Spectral Line Width, Wave Functions

Scientific paper

The collision-induced dipole moment of the H2-He molecular system is computed from highly correlated wave functions with an uncertainty believed to be less than + or - 2 percent. These data are used, along with an advanced isotropic potential, to compute collision-induced rototranslational absorption (CIRTA) spectra and spectra moments for comparison with previous computations and measurements. The CIRTA results are in close agreement with Birnbaum's (1978) results, and suggest that reliable predictions of such CIRTA spectra can be generated at all temperatures of interest for planetary atmospheres over a frequency band limited only at the highest frequencies.

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