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Plasma radiation diagnostics of the primary energy release region in solar flares |
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| Authors: | Dean F Smith Daniel S Spicer |
| Institution: | (1) High Altitude Observatory, National Center for Atmospheric Research, Boulder, Colo., U.S.A.;(2) Dept. of Astro-Geophysics, University of Colorado, Boulder, Colo., U.S.A.;(3) Institute for Physical Science and Technology, University of Maryland, Md., U.S.A.;(4) E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, D.C., U.S.A. |
| Abstract: | The possibility is investigated that the plasma turbulence used in many recent models of the primary energy release and acceleration in solar flares should be detectable by radiation near the fundamental and second harmonic of the plasma frequency. Formulae are derived for fundamental emission due to the combination of ion-acoustic and Langmuir plasma turbulence and for second harmonic emission due to the combination of two Langmuir waves. These results are applied to recent primary energy release and acceleration models which shows that either such radiation should be detectable and possibly distinguishable with suitable microwave interferometers or that its absence places fairly stringent constraints on the possible level of Langmuir or Langmuir and ion-acoustic waves in these models.The National Center for Atmospheric Research is sponsored by the National Science Foundation. |
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