Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..49..427c&link_type=abstract
Astrophysics and Space Science, vol. 49, no. 2, July 1977, p. 427-442.
Astronomy and Astrophysics
Astrophysics
9
Cold Plasmas, Magnetic Fields, Nonuniform Plasmas, Plasma Layers, Plasma-Electromagnetic Interaction, Polarization Characteristics, Coupled Modes, Electromagnetic Absorption, Faraday Effect, High Energy Electrons, Propagation Modes, Spontaneous Emission
Scientific paper
A general equation of polarization transfer is developed for electromagnetic waves propagating in a stratified inhomogeneous magnetized plasma. Explicit expressions are obtained for tensors characterizing mode-coupling effects and Faraday rotation in an inhomogeneous magnetized medium. Another tensor is derived which describes the direct effect of spatial variations on the characteristic polarizations. A general equation of polarization transfer is presented which includes the effects of spontaneous emission, absorption, Faraday rotation, mode coupling, and variation of the characteristic polarizations. This general equation is then expressed in terms of the polarization tensor and in terms of the Stokes parameters. Five special cases are briefly considered: a homogeneous isotropic cold plasma, a homogeneous magnetized cold plasma, a homogeneous magnetized plasma containing energetic electrons, a locally homogeneous magnetized plasma containing energetic electrons, and an inhomogeneous magnetized cold plasma.
Cheng F. T.
Fung C. W. P.
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