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N2-broadening coefficients of CH3CN rovibrational lines and their temperature dependence for the Earth and Titan atmospheres.
- Source :
-
ICARUS . Aug2015, Vol. 256, p30-36. 7p. - Publication Year :
- 2015
-
Abstract
- Theoretical nitrogen-broadening coefficients and their temperature exponents for methyl cyanide lines in parallel (Δ K = 0) bands are calculated by a semi-empirical approach suitable for CH 3 X-type absorbers with large dipole moments. Together with the standard four-parameter correction factor determined from fitting on experimental line widths for each fixed K and requiring an extrapolation for higher K inaccessible experimentally, a new form accounting explicitly for the K -dependence and reducing the number of required parameters is proposed and successfully tested. Extensive (0 ⩽ J ⩽ 70, 0 ⩽ K ⩽ 20) R - and P -line lists are provided for the Earth and Titan atmosphere temperature ranges, which could be useful for atmospheric/astrophysical applications and spectroscopic databases. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00191035
- Volume :
- 256
- Database :
- Academic Search Index
- Journal :
- ICARUS
- Publication Type :
- Academic Journal
- Accession number :
- 102786307
- Full Text :
- https://doi.org/10.1016/j.icarus.2015.04.025