Temperature dependence of self-broadened halfwidths of CO2

Line shape parameters measurement and computations for self-broadened carbon dioxide transitions in the 30012←00001 and 30013←00001 bands, line mixing, and speed dependence

“…The value of n was assumed to be 0.75 following the assumption of Suarez and Valero [39]. Self-induced pressure shift were modeled using the expression where d 0 is the pressure induced shift, m is the measured line position, m 0 is the position at zero pressure, and p is the total pressure of the sample.…”

Self-broadened widths and shifts of 12C16O2: 4750–7000cm−1

“…8 Lines R44-R59 11 lines P28-R28 10 lines P20-P2 13 lines R22-R46 Webber [12] TDL Henningsen [15] a TDL 3 R-lines 38 lines P20-R56 Suarez/Valero [7] FTS temp dependence a Also reported pressure-induced shifts of self-broadened 12 CO 2 . Fig.…”

“…These were all done at 0.075 cm À1 resolution using a Fourier transform spectrometer (FTS). In 1990, Suarez and Valero [7] measured the temperature dependence of self-broadened widths for transitions in the 20012 ‹ 00001 band using a Bomem FTS with a resolution of 0.004 cm À1 . Most recently, a thorough measurement of these same four bands was done at 0.00455 cm À1 resolution by Regalia-Jarlot et al [8] using the Reims FTS.…”

“…The other studies are (A) Devi et al[20], (B) HITRAN2004[22], (C) Regalia-Jarlot et al[8] and (D) Valero et al[7] and Valero et al[6].…”

Line profile study of transitions in the 30012←00001 and 30013←00001 bands of carbon dioxide perturbed by air

“…c(P, T) is the half width (in cm À1 ) of the spectral line at pressure p and temperature T, and c 0 (Gas)(P 0 , T 0 ) is the half width of the line at the reference pressure P 0 (1 atm) and temperature T 0 (296 K) of the broadening gas (in this case Gas is air), and v is the ratio of the partial pressure of CO 2 to the total sample pressure, P CO 2 þ P air , in the cell. The value of n was 0.75 [26]. The self-broadened half width are calculated using the values reported in Ref.…”