论文标题
带有线重叠和连续不透明度的辐射传输的Sobolev近似
The Sobolev approximation for radiation transport with line overlap and continuous opacity
论文作者
论文摘要
考虑到具有较大速度梯度的平行介质中的辐射传输问题。使用Sobolev近似。考虑连续吸收和线重叠的影响。计算和制表光子损失概率函数。进行了两个计算 - 对于高斯光谱线轮廓和矩形轮廓。结果表明，在矩形轮廓宽度的特定选择下，计算结果非常接近。评估的光子丢失概率函数可用于在星际气体流中OH分子的能级种群的计算中。
The radiation transport problem in the plane-parallel medium with the large velocity gradient is considered. The Sobolev approximation is used. The effects of continuum absorption and line overlap are taken into account. The photon loss probability functions are calculated and tabulated. Two calculations are performed - for the Gaussian spectral line profile and for the rectangular profile. It is shown that at particular choice of the rectangular profile width the results of the calculations are very close. The evaluated photon loss probability functions may be used in the calculations of energy level populations of OH molecule in the interstellar gas flows.
