Broadening and shifting of vibrational-rotational lines corresponding to the highly excited rotational states of the water molecule

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Self-pressure-induced, as well as argon- and nitrogen-induced, broadening γ and shifting δ coefficients of vibrational-rotational lines of the water molecule have been calculated. The asymptotic behavior of the coefficients γ and δ at J → 42 and Ka → J has been studied. For the calculation of the parameters γ and δ, we used the wave functions obtained from the analysis of highly excited rotational states of the H2O molecule with the maximal ever observed values of rotational quantum numbers Jmax = 42, Kamax = 32. Rotational states were analyzed in the method of effective Hamiltonians using generating functions for the first eight vibrational states of the molecule.

Original languageEnglish
Pages (from-to)676-685
Number of pages10
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Issue number5
Publication statusPublished - Nov 2009


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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