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Propagation and Absorption of Electron Cyclotron Maser Emission during Solar Flares

Published online by Cambridge University Press:  27 September 2017

M. E. McKean ,
R. M. Winglee  and
G. A. Dulk
M. E. McKean
Affiliation:
Department of Astrophysical, Planetary and Atmospheric Sciences, University of Colorado, Boulder, CO 80809-0891
R. M. Winglee
Affiliation:
Department of Astrophysical, Planetary and Atmospheric Sciences, University of Colorado, Boulder, CO 80809-0891
G. A. Dulk
Affiliation:
Department of Astrophysical, Planetary and Atmospheric Sciences, University of Colorado, Boulder, CO 80809-0891

Abstract

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The propagation and absorption of the maser radiation emitted during solar flares are examined through linear theory and electromagnetic particle simulations. While linear theory predicts complete absorption of the maser radiation at the second harmonic layer (where the local cyclotron frequency is roughly one-half the frequency of the maser radiation), particle simulations indicate that some radiation escapes clue to reemission of absorbed energy by the ambient plasma. Strong perpendicular heating of the ambient electrons occurs as well.

Type
Session III: Theory
Information
International Astronomical Union Colloquium , Volume 104 , Issue 2: Solar and Stellar Flares , 1989 , pp. 333 - 336
Copyright
Copyright © Kluwer 1989

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