Astrophysics and Space Science

, Volume 153, Issue 2, pp 229–251 | Cite as

Čerenkov radiation in anisotropic plasmas

  • P. C. W. Fung
  • P. L. Leung
Article
  • 35 Downloads

Abstract

Following our series of works on anisotropic radiation, we analyze the Čerenkov condition in magnetized plasmas in this paper. We have discovered that the usual Čerenkov condition cos θ=1/nβ isnot satisfied at a far field point in anisotropic media, implying that when a charge is moving in a magnetized plasma, a linear shock wave front does not form. Thus we can calculate the power received at a far field per unit time in such a medium — this quantity could not be evaluated according to previous theory. Numerical examples are presented to show various relevant characteristics of Čerenkov radiation in model plasmas.

Keywords

Radiation Shock Wave Wave Front Relevant Characteristic Anisotropic Medium 

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References

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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • P. C. W. Fung
    • 1
  • P. L. Leung
    • 1
    • 2
  1. 1.Physics DepartmentUniversity of Hong KongHong Kong
  2. 2.Physics DepartmentHong Kong Baptist CollegeHong Kong

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