Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sva....22..706s&link_type=abstract
(Astronomicheskii Zhurnal, vol. 55, Nov.-Dec. 1978, p. 1241-1249.) Soviet Astronomy, vol. 22, Nov.-Dec. 1978, p. 706-711. Trans
Astronomy and Astrophysics
Astronomy
Faraday Effect, Magnetic Stars, Photosphere, Polarized Light, Stellar Radiation, Visual Observation, White Dwarf Stars, Atmospheric Radiation, Circular Polarization, Depolarization, Field Strength, Linear Polarization, Stellar Magnetic Fields
Scientific paper
The depolarizing properties of magnetically active media are considered. It is shown that Faraday depolarization cannot prevent the emission of linearly polarized radiation from the photosphere of a magnetic white dwarf if the surface magnetic-field strength is of the order of 100 MG. In this case the optical radiation from the photosphere would exhibit appreciable circular and linear polarization of the same order of magnitude. Some general polarization effects that occur during propagation of polarized radiation in an arbitrary magnetically active medium are examined which must be taken into account when interpreting polarimetric observations of both white dwarfs and other astrophysical objects with strong magnetic fields.
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