CO2–CO2 and CO2–Ar continua at millimeter wavelengthsстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 24 февраля 2021 г.
Аннотация:Broadband spectra of the continuum absorption in pure CO2 gas and its mixture with Arare studied at room temperature using a resonator spectrometer within 105–240 GHz. Theexpected pressure and frequency dependence is observed. The obtained data are validatedby two independent calculations of the interaction-induced absorption using a semiclassicaltrajectory-based method. The observed continuum is interpreted in terms of bimolecularabsorption, including a significant contribution from true bound dimers. A simplified formuladescribing both frequency and temperature dependency of the CO2–Ar continuum within afrequency range from 60 GHz to 450 GHz at temperatures from 200 K to 400 K is suggestedfor use in atmospheric studies