Transmission and reflection operators of radiative transfer equation with aberration and advection terms. II - Line radiation in spherical symmetry

Abstract

A formal solution of the equation of radiative transfer is presented with aberration and advection terms corresponding to the lines included. The operators of reflection and transmission in a radially expanding spherically symmetric shell are derived. This solution is valid in a medium moving with velocity v such that v/c is about 0.0167. Complete or partial frequency redistribution of photon frequencies can be incorporated if desired.