Abstract
The problem of resonance line polarization is studied using simple theoretical models. The medium is assumed to be a finite slab or a finite spherical shell-like atmosphere. A comparison of lines formed under complete redistribution and partial redistribution in frequency is presented, for both plane-parallel and spherically symmetric media. The dependence of the resonance line polarization of physical parameters of the two-level atom formulation, and on the global parameters such as extendedness, the opacity law in a spherical medium, and the boundary conditions are studied. The resonance line polarization by coherent scattering is also discussed.
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