Non-polynomial representation of the broadening coefficients of ammonia absorption lines by pressure of helium, argon, nitrogen, oxygen, air, hydrogen, carbon dioxide, and its own pressure
V.I. Starikov
Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
Keywords: ammonia, helium, argon, nitrogen, oxygen, air, hydrogen, carbon dioxide, self-broadening coefficient
Abstract
From the known experimental data, the parameters of the non-polynomial analytical model γ(sur) for the broadening coefficients γ of the ammonia molecule absorption lines by the pressure of helium, argon, nitrogen, oxygen, air, hydrogen, carbon dioxide, and its own pressure are determined. The accuracy of the experimental data recovery by the model γ(sur) varies from 3.3 (nitrogen broadening) to 8.5% (carbon dioxide broadening). The comparison with the polynomial representation and with the results of calculations of these coefficients by the semi-classical method is made.
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