Research output: Contribution to journal › Article › peer-review
CO2–CO2 and CO2–Ar continua at millimeter wavelengths. / Odintsova, T. A.; Serov, E. A.; Balashov, A. A.; Koshelev, M. A.; Koroleva, A. O.; Simonova, A. A.; Tretyakov, M. Yu; Filippov, N. N.; Chistikov, D. N.; Finenko, A. A.; Lokshtanov, S. E.; Petrov, S. V.; Vigasin, A. A.
In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 258, 107400, 01.2021.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - CO2–CO2 and CO2–Ar continua at millimeter wavelengths
AU - Odintsova, T. A.
AU - Serov, E. A.
AU - Balashov, A. A.
AU - Koshelev, M. A.
AU - Koroleva, A. O.
AU - Simonova, A. A.
AU - Tretyakov, M. Yu
AU - Filippov, N. N.
AU - Chistikov, D. N.
AU - Finenko, A. A.
AU - Lokshtanov, S. E.
AU - Petrov, S. V.
AU - Vigasin, A. A.
N1 - Funding Information: The experimental studies and data analysis were supported by the Russian Foundation for Basic Research, Grants 18-32-20156, and 18-05-00119. Partial support of this work from The Ministry of Science and Higher Education of the Russian Federation, Project 19-270, and from Presidium of RAS Program 12 is gratefully acknowledged. The trajectory-based calculations of the IAP/MSU group were run on the FASRC Cannon cluster supported by the FAS Division of Science Research Computing Group at Harvard University. Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - 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.
AB - 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.
KW - Bimolecular absorption
KW - Carbon dioxide
KW - Classical trajectories
KW - Continuum
KW - Dimers
KW - Resonator spectroscopy
KW - Rototranslational band
KW - COLLISION-INDUCED ABSORPTION
KW - 239 GHZ
KW - TEMPERATURE-VARIATIONS
KW - FREE STATES
KW - REGION
KW - SPECTROSCOPY
KW - WATER-VAPOR CONTINUUM
KW - COMPRESSED GASES
KW - INDUCED MICROWAVE-ABSORPTION
KW - CARBON-DIOXIDE
UR - http://www.scopus.com/inward/record.url?scp=85094323288&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/30637551-ba23-3ab8-a2fa-a78a506e3c94/
U2 - 10.1016/j.jqsrt.2020.107400
DO - 10.1016/j.jqsrt.2020.107400
M3 - Article
AN - SCOPUS:85094323288
VL - 258
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
SN - 0022-4073
M1 - 107400
ER -
ID: 73913288