Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-19T15:26:00.005Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Angel, J.R.P., Liebert, J., and Stockman, H.S. 1985, Ap. J., 292, 260.CrossRefGoogle Scholar
Chandrasekhar, S. I960, Radiative Transfer (New York: Dover).Google Scholar
Chou, C.K. 1986, Astrophys. and Space Sci., 121, 333.CrossRefGoogle Scholar
Henry, R.J.W., and O’Connell, R.F. 1984, Ap. J., 282, L97.Google Scholar
Herold, H. 1979, Phys. Rev. D, 19, 2868.CrossRefGoogle Scholar
Kemp, J.C. 1977, Ap. J., 213, 794.CrossRefGoogle Scholar
Lamb, F.K., and Sutherland, P.G. 1974, in IAU Symposium 53, Physics of Dense Matter, ed. Hansen, C.J. (Dordrecht: Reidel), p. 265. Google Scholar
Landstreet, J.D., and Angel, J.R.P. 1975, Ap. J., 196, 819.CrossRefGoogle Scholar
Lauer, J., Herold, H., Ruder, H. and Wunner, G. 1983, J. Phys B: At. Mol Phys., 16, 3673.CrossRefGoogle Scholar
Lodenquai, J., Canuto, V., Ruderman, M., Tsuruta, S. 1974, Ap. J., 190, 141.Google Scholar
Martin, B., and Wickramasinghe, D.T. 1978, Mon. Not. R. astr. Soc., 183, 533.Google Scholar
Nagendra, K.N., and Peraiah, A. 1984, Astrophys. and Space Sci., 104, 61.Google Scholar
Wickramasinghe, D.T., and Ferrano, L. 1988, Ap. J., 327, 222.CrossRefGoogle Scholar
Wickramasinghe, D.T., and Martin, B. 1979, Mon. Not. R. astr. Soc., 188, 165.Google Scholar
Wickramasinghe, D.T., and Meggitt, S.M.A. 1985, Mon. Not. R. astr. Soc., 214, 605.CrossRefGoogle Scholar