Volume 164, Number 1 (1994), in the article "Measurements of Pressure Broadening and Shifts of O3 Lines in the 3-μm Region," by M. A. H. Smith, C. P. Rinsland, V. Malathy Devi, and E. S. Prochaska, pages 239-259

High Resolution Analysis of the 5ν3, 3ν1+ ν2+ ν3, and ν1+ 4ν3Bands of16O3: Line Positions and Intensities

“…The absolute calibration was done using n 1 / 4n 3 0 n 3 hot band in the 2.5 mm region. The 2.1 mm lines of CO 2 (21) which appears as an impurity in the region has previously been the subject of a band contour cell. The second spectrum, in the 2.5 mm region, recorded analysis (18) using low resolution spectra (19) providing with a pathlength of 3616 cm and 42.8 Torr of O 3 , with estimated band centers for (311) and (005).…”

Pressure-Broadened Linewidth Measurements in the ν2Band of the CH3Radical

“…Since A scales with the polarizability, a, of the molecule DISCUSSION (30), the argon broadening coefficients of CH 4 and CH 3 should scale with their polarizabilities if the anisotropic disAlthough there are no published values for the pressure broadening coefficients of CH 3 to which to compare our persion interaction also dominates the CH 3 -Ar interruption function. However, the lowest order multipole moment of results, there is an abundant literature on the pressure broadening of methane's infrared absorption lines (21,22). In an CH 3 is the quadrupole moment so the quadrupole/induced dipole interaction, whose energy also scales as R 07 , should effort to put our limited amount of CH 3 data in context, we will briefly summarize some pertinent CH 4 results.…”

“…modest dependence on tetrahedral symmetry species (23). In the n 2 (1534 cm 01 ), n 3 (3019 cm 01 ), and n 4 (1306 cm 01 ) a(CH 3 ) is expected to be smaller than a(CH 4 ) since hydrocarbon polarizabilities scale with the number of C-H bonds bands, the pressure broadening coefficients (HWHM) are in the range 0.04-0.07 cm 01 atm 01 for nitrogen (21,22). (32).…”

Temperature-Dependent Line Shift and Broadening of CO Infrared Transitions

“…[5] Because CO perturbed by argon exhibits a small broadening but a large lineshift effect, the evaluation of the temperaturedependent shift is most reliable for these measurements, and a comparison to calculated values by the high level semi-classical collision theory of Robert and Bonamy is most revealing.…”

“…The temperature dependence of both effects lacks laboratory data, especially for low temperatures. Smith and Devi (5,6) have published a large number of temperature-dependent shift data of ozone and methane measured by Fourier Transform Spectroscopy (FT), but a comparison of FT data with tunable diode laser spectra by Yamada et al (7) has brought the quality of lineshift measurements by FT spectrometer into question.…”