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Thomson Scattering in Magnetic Fields

Published online by Cambridge University Press:  12 April 2016

Barbara Whitney
Barbara Whitney*
Affiliation:
Department of Astronomy,University of Wisconsin—Madison

Abstract

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The equation of transfer in Thomson scattering atmospheres with magnetic fields is solved using Monte Carlo methods. Two cases, a plane parallel atmosphere with a magnetic field perpendicular to the atmosphere, and a dipole star, are investigated. The wavelength dependence of polarization from a plane-parallel atmosphere is qualitatively similar to that observed in the magnetic white dwarf Grw+70°8247, and the field strength determined by the calculation, 3.2×l08 G, is quantitatively similar to that determined from the line spectrum. The dipole model does not resemble the data as well as the single plane-parallel atmosphere.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 114: White Dwarfs , 1989 , pp. 392 - 395
Copyright
Copyright © Springer-Verlag 1989

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