Vol. 30, issue 02, article # 2

Abstract:

Eleven resonance functions of the theory of the broadening of molecular lines by foreign atomic gases are calculated for very low temperatures. These functions correspond to the atom-atom potential and to the potential V(R, θ) written as a series in Legendre functions. The functions are presented in the analytical form. The calculations of the broadening coefficients γ are performed for the CO lines perturbed by the He and Ar for the temperatures T from 300 to 2 K. It is shown that the dependence γ(T) for low temperatures T is determined by the deep of the potential. For CO–He system the comparison with the experimental data is presented.

Keywords:

collisional broadening, resonance functions, low temperatures

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