Rinsland C P, Devi V M, Smith M A, Benner D C
Appl Opt. 1988 Feb 1;27(3):631-51. doi: 10.1364/AO.27.000631.
Air-broadened and N(2)-broadened halfwidth and pressure shift coefficients of 294 transitions in the nu(4) and nu(2) bands of (12)CH(4) have been measured from laboratory absorption spectra recorded at room temperature with the Fourier transform spectrometer in the McMath solar telescope facility of the National Solar Observatory. Total pressures of up to 551 Torr were employed with absorption paths of 5-150 cm, CH(4) volume mixing ratios of 2.6% or less, and resolutions of 0.005 and 0.01 cm(-1). A nonlinear least-squares spectral fitting technique has been utilized in the analysis of the twenty-five measured spectra. Lines up to J' = 18 in the nu(4) band and J' = 15 in the nu(2) band have been analyzed.
利用国家太阳天文台麦克马思太阳望远镜设施中的傅里叶变换光谱仪，在室温下记录的实验室吸收光谱，测量了(^{12}CH_4)的(\nu_4)和(\nu_2)带中294条跃迁谱线的空气加宽和(N_2)加宽半高宽及压力位移系数。使用了高达551托的总压力，吸收路径为5 - 150厘米，(CH_4)体积混合比为2.6%或更低，分辨率为0.005和0.01厘米(^{-1})。在对25条测量光谱的分析中采用了非线性最小二乘光谱拟合技术。分析了(\nu_4)带中高达(J' = 18)以及(\nu_2)带中(J' = 15)的谱线。
