Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 316-323 |
| Number of pages | 8 |
| Journal | Atmospheric and Oceanic Optics |
| Volume | 30 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jul 2017 |
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Keywords
- collisional broadening
- low temperatures
- resonance functions
ASJC Scopus subject areas
- Oceanography
- Atomic and Molecular Physics, and Optics
- Earth-Surface Processes
- Atmospheric Science
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Resonance functions in the theory of collisional broadening of molecule spectral lines at low temperatures. / Starikov, V. I.
In: Atmospheric and Oceanic Optics, Vol. 30, No. 4, 01.07.2017, p. 316-323.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Resonance functions in the theory of collisional broadening of molecule spectral lines at low temperatures
AU - Starikov, V. I.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - 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.
AB - 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.
KW - collisional broadening
KW - low temperatures
KW - resonance functions
UR - http://www.scopus.com/inward/record.url?scp=85028040546&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028040546&partnerID=8YFLogxK
U2 - 10.1134/S102485601704011X
DO - 10.1134/S102485601704011X
M3 - Article
AN - SCOPUS:85028040546
VL - 30
SP - 316
EP - 323
JO - Atmospheric and Oceanic Optics
JF - Atmospheric and Oceanic Optics
SN - 1024-8560
IS - 4
ER -