Resonance functions in the theory of collisional broadening of molecule spectral lines at low temperatures
- Autores: Starikov V.I.1,2
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Afiliações:
- Tomsk State University of Control Systems and Radioelectronics
- National Research Tomsk Polytechnic University
- Edição: Volume 30, Nº 4 (2017)
- Páginas: 316-323
- Seção: Spectroscopy of Ambient Medium
- URL: https://journals.rcsi.science/1024-8560/article/view/188099
- DOI: https://doi.org/10.1134/S102485601704011X
- ID: 188099
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Resumo
Eleven resonance functions are calculated in the exact trajectory model, which can be used for calculation of broadening coefficients γ of molecular lines during interactions with atoms of inert gases at very low temperatures. These functions correspond to the atom-atom potential and the potential V(R, θ) written in terms of Legendre polynomials. The functions are represented in analytical form. The broadening coefficients γ are calculated for absorption lines of CO perturbed by He and Ar at temperatures T from 300 to 2 K using the potential V(R, θ). It is shown that the dependence γ(T) for low temperatures T is determined by the potential well depth. For the CO–He system, a comparison with the experimental data is performed.
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Sobre autores
V. Starikov
Tomsk State University of Control Systems and Radioelectronics; National Research Tomsk Polytechnic University
Autor responsável pela correspondência
Email: vstarikov@yandex.ru
Rússia, Tomsk, 634050; Tomsk, 634050
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