CO2–CO2 and CO2–Ar continua at millimeter wavelengths

T. A. Odintsova, E. A. Serov, A. A. Balashov, M. A. Koshelev, A. O. Koroleva, A. A. Simonova, M. Yu Tretyakov, N. N. Filippov, D. N. Chistikov, A. A. Finenko, S. E. Lokshtanov, S. V. Petrov, A. A. Vigasin

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Broadband spectra of the continuum absorption in pure CO2 gas and its mixture with Ar are studied at room temperature using a resonator spectrometer within 105–240 GHz. The expected pressure and frequency dependence is observed. The obtained data are validated by two independent calculations of the interaction-induced absorption using a semiclassical trajectory-based method. The observed continuum is interpreted in terms of bimolecular absorption, including a significant contribution from true bound dimers. A simplified formula describing both frequency and temperature dependency of the CO2–Ar continuum within a frequency range from 60 GHz to 450 GHz at temperatures from 200 K to 400 K is suggested for use in atmospheric studies.

Язык оригиналаанглийский
Номер статьи107400
ЖурналJournal of Quantitative Spectroscopy and Radiative Transfer
Том258
DOI
СостояниеОпубликовано - янв 2021

Предметные области Scopus

  • Радиация
  • Атомная и молекулярная физика и оптика
  • Спектроскопия

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