Physics – General Physics
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrva..38.1839m&link_type=abstract
Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 38, Aug. 15, 1988, p. 1839-1847.
Physics
General Physics
14
Absorption Spectra, Molecular Collisions, Molecular Rotation, Vibrational Spectra, Far Infrared Radiation, Helium, Hydrogen, Line Spectra
Scientific paper
Line-profile symmetry types for H2-He-complex rotovibrational collision-induced absorption (RVCIA) spectra are investigated theoretically, with a focus on the dependence of intermolecular action potentials on the vibrational coordinates of the molecules. The theoretical basis of the computations is explored in detail, and the results are presented in graphs. Commonly used model profiles are shown to have a symmetry inconsistent with that of the RVCIA profiles, and simple procedures are given for constructing model profiles with the proper symmetry. The importance of this finding for studies of the high-temperature vibrational CIA bands typical of stellar atmospheres is indicated.
Borysow Aleksandra
Frommhold Lothar
Moraldi Massimo
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