MEASUREMENTS OF AIR-BROADENING AND PRESSURE-SHIFTING OF METHANE LINES IN THE 2.3-MU-M REGION

被引：23

作者：

DEVI, VM ^{[1
]}

BENNER, DC ^{[1
]}

SMITH, MAH ^{[1
]}

RINSLAND, CP ^{[1
]}

机构：

[1] NASA, LANGLEY RES CTR, DIV ATMOSPHER SCI, HAMPTON, VA 23681 USA

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 1993年 / 157卷 / 01期

关键词：

D O I：

10.1006/jmsp.1993.1008

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Lorentz air-broadening coefficients and air-pressure-induced line-shift coefficients have been determined for over 270 spectral lines belonging to the ν1 + ν4, ν3 + ν4, and the ν2 + ν3 infrared vibration-rotation bands of 12CH4 occurring in the 4138-4600 cm-1 spectral region. The results were obtained from analysis of five absorption spectra recorded at room temperature (∼0.01 cm-1 resolution) using the McMath Fourier transform spectrometer. The broadening and shift coefficients were determined using a nonlinear least-squares spectrum fitting procedure. The variations of the measured parameters with the symmetry species and the rotational quantum numbers of the transitions involved are discussed. © 1993 Academic Press, Inc.

引用

页码：95 / 111

页数：17

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