Abstract
The water vapor line broadening γ and shift δ coefficients in the ν1 + ν2, ν2 + ν3, ν1 + ν3, 2ν3, 2ν1, 2ν2 + ν3, and ν1 + 2ν2 vibrational bands were obtained from the analysis of the H2O-He absorption spectra, recorded in the region from 5000 to 7500 cm-1 with the spectral resolution of 0.01 cm-1 using a Bruker IFS 125HR FTIR spectrometer. The vibrational bands 2ν3 and ν1 + 2ν2 were investigated for the first time. The calculations of γ and δ were performed in the framework of the semi-classical method. The rotational contributions as well as the contributions connected with the accidental resonances were taken into account in the used H2O-He interaction potential. The analytical representation of the broadening coefficients γ at planetary temperatures was introduced and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 50-58 |
| Number of pages | 9 |
| Journal | Journal of Molecular Spectroscopy |
| Volume | 321 |
| DOIs | |
| Publication status | Published - 1 Mar 2016 |
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Keywords
- Fourier transform spectroscopy
- Intermolecular potential
- Line broadening and shift coefficients
- Semiclassical method
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Spectroscopy
- Physical and Theoretical Chemistry
Cite this
Broadening parameters of the H2O-He collisional system for astrophysical applications. / Petrova, T. M.; Solodov, A. M.; Solodov, A. A.; Starikov, V. I.
In: Journal of Molecular Spectroscopy, Vol. 321, 01.03.2016, p. 50-58.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Broadening parameters of the H2O-He collisional system for astrophysical applications
AU - Petrova, T. M.
AU - Solodov, A. M.
AU - Solodov, A. A.
AU - Starikov, V. I.
PY - 2016/3/1
Y1 - 2016/3/1
N2 - The water vapor line broadening γ and shift δ coefficients in the ν1 + ν2, ν2 + ν3, ν1 + ν3, 2ν3, 2ν1, 2ν2 + ν3, and ν1 + 2ν2 vibrational bands were obtained from the analysis of the H2O-He absorption spectra, recorded in the region from 5000 to 7500 cm-1 with the spectral resolution of 0.01 cm-1 using a Bruker IFS 125HR FTIR spectrometer. The vibrational bands 2ν3 and ν1 + 2ν2 were investigated for the first time. The calculations of γ and δ were performed in the framework of the semi-classical method. The rotational contributions as well as the contributions connected with the accidental resonances were taken into account in the used H2O-He interaction potential. The analytical representation of the broadening coefficients γ at planetary temperatures was introduced and discussed.
AB - The water vapor line broadening γ and shift δ coefficients in the ν1 + ν2, ν2 + ν3, ν1 + ν3, 2ν3, 2ν1, 2ν2 + ν3, and ν1 + 2ν2 vibrational bands were obtained from the analysis of the H2O-He absorption spectra, recorded in the region from 5000 to 7500 cm-1 with the spectral resolution of 0.01 cm-1 using a Bruker IFS 125HR FTIR spectrometer. The vibrational bands 2ν3 and ν1 + 2ν2 were investigated for the first time. The calculations of γ and δ were performed in the framework of the semi-classical method. The rotational contributions as well as the contributions connected with the accidental resonances were taken into account in the used H2O-He interaction potential. The analytical representation of the broadening coefficients γ at planetary temperatures was introduced and discussed.
KW - Fourier transform spectroscopy
KW - Intermolecular potential
KW - Line broadening and shift coefficients
KW - Semiclassical method
UR - http://www.scopus.com/inward/record.url?scp=84957950758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84957950758&partnerID=8YFLogxK
U2 - 10.1016/j.jms.2016.01.009
DO - 10.1016/j.jms.2016.01.009
M3 - Article
VL - 321
SP - 50
EP - 58
JO - Journal of Molecular Spectroscopy
JF - Journal of Molecular Spectroscopy
SN - 0022-2852
ER -