Hostname: page-component-7bb8b95d7b-wpx69 Total loading time: 0 Render date: 2024-09-13T13:51:05.519Z Has data issue: false hasContentIssue false
  • English
  • Français

The Effect of Magnetic Field Spread and Temperature and Density Variations in Cyclotron Emission Regions

Published online by Cambridge University Press:  25 April 2016

D. T. Wickramasinghe  and
Lilia Ferrario
D. T. Wickramasinghe
Affiliation:
Department of Mathematics, Australian National University
Lilia Ferrario
Affiliation:
Mount Stromlo and Siding Spring Observatories, Australian National University
Get access Rights & Permissions [Opens in a new window]

Abstract

We discuss the properties of cyclotron radiation from accretion shocks located above the atmospheres of magnetic white dwarfs taking into account the effects of field spread and density and temparture structure. The models which are an improvement on previous point source models are shown to have characteristics that are in better overall agreement with the properties of AM Herculis type systems. Our calculations of the polarization properties of large polar cap emission regions are used to discuss the recent null measurements of circular polarization in DQ Herculis type systems.

Type
Theoretical
Information
Publications of the Astronomical Society of Australia , Volume 7 , Issue 2 , 1987 , pp. 123 - 127
Copyright
Copyright © Astronomical Society of Australia 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bailey, J., Anon, D. J., Hough, J. H., Watts, D. J., Giles, A.B., and Greenhill, J. G., 1987, Mon. Not. R. Astron. Soc., 205, 1p.CrossRefGoogle Scholar
Barrett, P. E., and Chanmugam, G., 1984, Astrophys. J., 278, 298.CrossRefGoogle Scholar
Cropper, M., 1986, Mon. Not. R. Astron. Soc., 222 853.CrossRefGoogle Scholar
Cropper, M., and Warner, B., 1985, Mon. Not. R. Astron. Soc., 220, 633.CrossRefGoogle Scholar
King, A., and Shaviv, G., 1984, Mon. Not. R. Astron. Soc., 211, 883.CrossRefGoogle Scholar
Lamb, D. Q., 1985, in ‘Cataclysmic Variables and Low Mass X-ray binaries’, ed. Patterson, J. and Lamb, D. Q. (Cambridge, Reidel).CrossRefGoogle Scholar
Lamb, D. Q., and Patterson, J., 1982, in ‘Cataclysmic Variables and related objects’, Proc. IAU. Coll. No. 72., ed. Livio, M. and Shaviv, G. (Reidel Dordrecht).Google Scholar
Liebert, J., and Stockman, H.S., 1985, in ‘Cataclysmic Variables and Low Mass X-ray binaries’, ed. Patterson, J. and Lamb, D. Q. (Cambridge, Reidel).Google Scholar
Meggit, S.M.A., and Winckramasinghe, D. T., 1982, Mon. Not. R. Astron. Soc., 198, 71.CrossRefGoogle Scholar
Meggit, S.M.A., and Wickramasinghe, D. T., 1984, Mon. Not. R. Astron. Soc., 207, 1.CrossRefGoogle Scholar
Schmidt, G., Stockman, H. S., and Grandi, S., 1986, Astrophys. J., 300, 804.CrossRefGoogle Scholar
Stockman, H. S., and Lubenow, A. F., 1987, (reprint).Google Scholar
Wickramasinghe, D. T., and Meggitt, S. M.A., 1982, Mon. Not. R. Astron. Soc., 198, 975.CrossRefGoogle Scholar
Wickramasinghe, D. T., and Meggitt, S. M. A., 1985a, Mon. Not. R. Astron. Soc., 214, 605.CrossRefGoogle Scholar
Wickramasinghe, D. T., and Meggitt, S. M.A., 1985b, Mon. Not. R. Astron. Soc., 216, 857.CrossRefGoogle Scholar