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Detection of Langmuir Solitons: Implications for Type III Burst Emission Mechanisms at 2ωPE

Published online by Cambridge University Press:  12 April 2016

G. Thejappa ,
R.G. Stone  and
M.L. Goldstein
G. Thejappa
Affiliation:
NASA, Goddard Space Flight Center, Greenbelt MD 20771
R.G. Stone
Affiliation:
NASA, Goddard Space Flight Center, Greenbelt MD 20771
M.L. Goldstein
Affiliation:
NASA, Goddard Space Flight Center, Greenbelt MD 20771

Abstract

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We present the experimental verification of existing theoretical models of emission mechanisms of solar type III bursts at the second harmonic of the plasma frequency, ωpe. This study is based on the detection of Langmuir and envelope solitons by the Ulysses spacecraft inside three type III burst source regions. We show that the oscillating-two-stream instability, coherent radiation by Langmuir solitons and stochastic phase mixing of the Langmuir waves in the strong turbulence regime are the appropriate emission mechanisms at 2ωpe.

Keywords

Langmuir SolitonsType III Bursts
Type
Satellite Data from Ulysses, Yohkoh & Other Spacecrafts
Information
International Astronomical Union Colloquium , Volume 154: Solar and Interplanetary Transients , 1996 , pp. 195 - 198
Copyright
Copyright © Kluwer 1997

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