Non Local Effects on the Redistribution of Resonant Scattered Photons

Abstract

The preceeding paper by Oxenius leads to the conclusion that photon redistribution during spectral line formation presents two problems: the first is the obtention of the atomic absorption and emission coefficients and the second is the relation between these atomic profile coefficients and the corresponding laboratory profiles. The classical or local theory of redistribution simplifies considerably this second problem because it do not consider the streaming of the excited atoms, that is, it takes the position of the atoms at the emission moment as the same as the position at the absorption moment. But the motion of absorbed and emitted atoms in the basic element is the description of the absorption and emission laboratory profile coefficients, for any given atomic profiles, so the study of this motion must be important in the analysis of the shape of a spectral line.