Ten high resolution Fourier transform spectra of the pentad region near of methane diluted in carbon dioxide at total pressures up to 800 hPa have been recorded at K. Including a high resolution spectrum of pure methane at low pressure, these spectra have been analyzed using multi-spectrum fitting techniques. The methane lines were modeled using hard-collision speed-dependent line profiles and line mixing was included in the strongest absorption regions, considering the first order Rosenkranz approximation and the relaxation matrix formalism. CO broadening and shift coefficients have been measured, together with the speed dependence of broadening. Results obtained using the two line mixing models are intercompared and compared with previous work.

中文翻译：

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使用硬碰撞速度相关线形状和松弛矩阵形式测量的 12CH[公式省略]带的 CO[公式省略]碰撞引起的线参数


在 K 处记录了在总压高达 800 hPa 的情况下，在二氧化碳中稀释的甲烷附近的五元组区域的十个高分辨率傅立叶变换光谱。包括低压下纯甲烷的高分辨率光谱，这些光谱已使用多重分析仪进行了分析。频谱拟合技术。考虑到一阶 Rosenkranz 近似和松弛矩阵形式，使用与速度相关的硬碰撞线轮廓对甲烷线进行建模，并且线混合包含在最强吸收区域中。测量了CO展宽和位移系数，以及展宽的速度依赖性。使用两种线混合模型获得的结果进行相互比较并与以前的工作进行比较。