Frequency Redistribution of Polarized Light in the Lambda-Type Multi-Term Polarized Atom

We study the effects of Rayleigh and Raman scattering on the formation of polarized spectral lines in a $Λ$-type multi-term atom. We fully take into account the partial redistribution of frequency and the presence of atomic polarization in the lower states of the atomic model. Problems that can be modeled with this formalism include, for example, the formation of the Ca II H-K and IR triplet, the analogous system of Ba II, and the Ly$β$-H$α$ system of hydrogenic ions.

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