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Solar Physics

, Volume 103, Issue 1, pp 141–151 | Cite as

A theory for the solar type-I radio continuum

  • Donat G. Wentzel
Article

Abstract

The type-I radio continuum may arise from the combination of two electrostatic waves, both directed nearly normal to the magnetic field. One wave, near the upper-hybrid frequency, is generated by gyroresonance with superthermal electrons and comes into equilibrium with these electrons. The other wave, at the lower-hybrid frequency, is generated by the loss-cone instability of trapped superthermal protons in those wave directions for which the lower-hybrid frequency is an exact multiple of the proton gyrofrequency. The brightness temperature of the continuum indicates both the energy of the superthermal electrons and the existance of at least a small number of superthermal protons.

Keywords

Magnetic Field Brightness Temperature Wave Direction Electrostatic Wave Radio Continuum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Donat G. Wentzel
    • 1
  1. 1.Astronomy Program, University of MarylandU.S.A.

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