Broadening parameters of the H2O-He collisional system for astrophysical applications

T. M. Petrova, A. M. Solodov, A. A. Solodov, V. I. Starikov

    Результат исследований: Материалы для журналаСтатья

    9 Цитирования (Scopus)


    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.

    Язык оригиналаАнглийский
    Страницы (с-по)50-58
    Число страниц9
    ЖурналJournal of Molecular Spectroscopy
    СостояниеОпубликовано - 1 мар 2016


    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Spectroscopy
    • Physical and Theoretical Chemistry