Effect of Line or Band Shape on the Radiative Flux of an Isothermal Spherical Layer

Radiative transfer in a nongray, absorbing-emitting spherical layer is investigated. The absorption coefficient consists of an array of equal-intensity, nonoverlapping, narrow bands or lines. Specific attention is directed toward the evaluation of the effect of band or line shape on the local radiative flux of an isothermal layer. The integral equation for radiative equilibrium is formulated and functions associated with it are studied. Numerical and graphical results are presented for the rectangular, triangular, exponential, Doppler, and Lorentz profiles. © 1973