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Connection between ambient density fluctuations and clumpy Langmuir waves in type III radio sourcesA recent stochastic-growth theory of clumpy Langmuir waves in type III sources is shown to imply that the clumps will have the same size distribution as the ambient low-frequency density fluctuations in the solar wind. Spectral analysis of Langmuir-wave time series from the ISEE 3 plasma wave instrument confirms this prediction to within the uncertainties in the spectra. The smallest Langmuir clump size is inferred to be in the range 0.4-30 km in general, and 2-30 km for beam-resonant waves, and it is concluded that the diffusion of waves in the source is anomalous.
Document ID
19920044715
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Robinson, P. A.
(Sydney, University Australia)
Cairns, I. H.
(NASA Headquarters Washington, DC United States)
Gurnett, D. A.
(Iowa, University Iowa City, United States)
Date Acquired
August 15, 2013
Publication Date
March 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 387
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
92A27339
Funding Number(s)
CONTRACT_GRANT: NAGW-2040
CONTRACT_GRANT: NAG5-1093
Distribution Limits
Public
Copyright
Other

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