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Current understanding of the physics of type III solar radio burstsOne of the most exciting plasma physics investigations of recent years has been connected with the understanding of a new strong turbulent plasma state excited by propagating electron beams. This new state is initiated on the linear level by parametric instabilities (OTS, modulational, etc.) and results in a very dynamic state composed of collective clusters of modes called solitons, cavitons, spikons, etc. Introduction of these concepts into the classic beam-plasma interaction problem has rendered quasi-linear and weak turbulence theories inapplicable over most of the interesting parameter range, and helped explain many paradoxes connected with the propagation of beams in the laboratory and space. Following a brief review of these nonlinear notions, the means by which their application to type III solar radiobursts has revolutionized understanding of their propagation, radioemission and scaling properties and has guided the in situ observations towards a more complete understanding are demonstrated. A particular burst (May 16, 1971) is analyzed in detail and compared with numerical predictions.
Document ID
19800069363
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Papadopoulos, K.
(Science Applications, Inc., McLean, Va.; Maryland, University College Park, Md., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Solar Physics
Meeting Information
Meeting: Radio physics of the sun
Location: College Park, MD
Start Date: August 7, 1979
End Date: August 10, 1979
Accession Number
80A53533
Distribution Limits
Public
Copyright
Other

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