Modeling of pressure-induced far-infrared absorption spectra Molecular hydrogen pairs

Statistics – Computation

Scientific paper

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Absorption Spectra, Dipole Moments, Hydrogen, Infrared Spectra, Molecular Interactions, Planetary Atmospheres, Pressure Effects, Computerized Simulation, Far Infrared Radiation, Gas Giant Planets, Jupiter Atmosphere, Line Shape, Molecular Rotation

Scientific paper

Meyer et al. (1985) have calculated the accurate induced dipole moment function of H2-H2 from first principles, using highly correlated wave functions for the first time in such work. The present paper is concerned with the collision-induced translational-rotational absorption coefficient for molecular hydrogen pairs, taking into account computations on the basis of the fundamental theory considered by Meyer et al. Data have been obtained for temperatures in the range from 40 to 300 K. Criteria are developed for choosing among various model line shapes. It is found that certain models are capable of approximating the quantum profiles closely, with rms errors of only a few percent.

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