Resonance line polarization in spherical atmospheres

Details Resonance line polarization in spherical atmospheres Resonance line polarization in spherical atmospheres

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...335..269n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 335, Dec. 1, 1988, p. 269-289.

Astronomy and Astrophysics

Astrophysics

24

Giant Stars, Linear Polarization, Radiative Transfer, Resonance Lines, Stellar Atmospheres, Absorption Spectra, Atmospheric Models, Photosphere, Planetary Nebulae

Scientific paper

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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