Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-30T10:45:23.782Z Has data issue: false hasContentIssue false
  • English
  • Français

Polarized Radiation from AM Herculis Stars

Published online by Cambridge University Press:  12 April 2016

P. E. Barrett  and
G. Chanmugam
P. E. Barrett
Affiliation:
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001
G. Chanmugam
Affiliation:
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001

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.

Calculations of polarized cyclotron radiation from magnetized hot plasmas are modified to include the effects of collisions and photon scattering. These effects produce a general reduction in both the linear and circular polarization. The background unpolarized flux which had previously been invoked, in an ad hoc manner for the collisionless case, is no longer required to bring agreement with observations. The most striking effect is at small viewing angles with the magnetic field, where the fractional circular polarization is reduced from nearly 100% to close to 0%. The calculations also show that the shape of the linear polarization pulse is essentially unchanged.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 72: Cataclysmic Variables and Related Objects , 1983 , pp. 217 - 221
Copyright
Copyright © Reidel 1983

References

Bond, H.E. and Chanmugam, G.: 1982 in Kondo, Y. Mead, J.M. and Chapman, R.D. (eds.), Advances n Ul travi ol et Astronomy: Four Years of I UE Research, pp. 530–533, NASA, Washington D. C. Google Scholar
Chanmugam, G. and Dulk, G.A.: 1981, Astrophys. J. 244, pp. 569–578.Google Scholar
Chiappetti, L., Tanzi, E.G., and Treves, A.: 1980, Space Sci. Rev. 27, pp. 3–33.Google Scholar
Lamb, D.Q. and Masters, A.R.: 1979, Astrophys. J. (Letters) 234, pp. L117-L122.CrossRefGoogle Scholar
Meggitt, S.M.A. and Wickramasinghe, D.T.: 1982, Monthly Notices Roy. Astron. Soc. 198, pp. 71–82.CrossRefGoogle Scholar
Pavlov, G.G., Mitrofanov, I.G. and Shibanov, Yu. A.: 1980, Astrophys. Space Sc. 73, pp. 63–82.Google Scholar
Ramaty, R.: 1969, Astrophys. J. 158, pp. 753–770.CrossRefGoogle Scholar
Stix, T.H.: 1962, Theory of Plasma Waves McGraw-Hill, New York.Google Scholar
Tapia, S.: 1977, Astrophys. J. (Letters) 212, pp. L125-L129.Google Scholar