Abstract

The influence of deviation of the values of spontaneous emission probability A on the temperature behavior of collisional self-broadening coefficients γ(T) of spectral lines of CO₂ molecules has been analyzed for solution of the inverse problem of simultaneous determination of A and γ from an array of absorption coefficients. Investigations have been carried out for two cases: (i) the calculations are performed using A = 0.2022 s^–1 (HITRAN2012); (ii) the A values are obtained via minimization of the sum of weighted squared deviations of the absorption coefficients. It is established for the two calculation versions that, when measuring the absorption coefficients with an error of no more than 0.05α_min, the deviation of the functions γ(T) does not exceed 5% in the temperature range of 300–700 K. No causal relationship is observed between parameters γ and A. The least-squares method makes it possible to correctly calculate the temperature dependences of the collisional self-broadening coefficients of CO₂ lines at simultaneous determination of parameters γ(T) and A.

中文翻译：

---

自发发射概率的不确定性对CO 2分子谱线碰撞自增宽系数温度行为的影响

摘要

分析了自发发射概率A值的偏差对CO ₂分子光谱线的碰撞自膨胀系数γ（T）的温度行为的影响，以解决同时测定A和γ的反问题。吸收系数的数组。已经针对两种情况进行了调查：（i）使用A = 0.2022 s ^–1（HITRAN2012）进行计算；（ii）A通过最小化吸收系数的加权平方偏差的总和来获得这些值。它被建立用于，与不超过一个0.05α误差测量的吸收系数，当两个计算版本_分钟，那么所述功能γ（偏差Ť）不能在温度范围300-700 K.超过5％在参数γ和A之间没有发现因果关系。最小二乘方法可以在同时确定参数γ（T）和A时正确计算CO ₂线的碰撞自膨胀系数的温度依赖性。