Frequency Redistribution Function for the Polarized Two-Term Atom

Abstract

We present a generalized frequency redistribution function for the polarized two-term atom in an arbitrary magnetic field. This result is derived within a new formulation of the quantum problem of coherent scattering of polarized radiation by atoms in the collisionless regime. The general theory, which is based on a diagrammatic treatment of the atom-photon interaction, is still work in progress. However, the results anticipated here are relevant enough for the study of the magnetism of the solar chromosphere and of interest for astrophysics in general.

ApJ, in press

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• The transfer of polarized radiation in resonance lines with partial frequency redistribution, J-state interference, and arbitrary magnetic fields. A radiative transfer code and useful approximations
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• A unified numerical model of collisional depolarization and broadening rates due to hydrogen atom collisions
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• The He I 10830 A line: Radiative transfer and differential illumination effects
• Laboratory Frequency Redistribution Function for the Polarized $\Lambda$-Type Three-Term Atom
• Rayleigh Scattering in Spectral Series with L-Term Interference
• The magnetic sensitivity of the Ca II H and K lines
• Experimental Testing of Scattering Polarization Models