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Strong Evidence for Stochastic Growth of Langmuir-Like Waves in Earth's ForeshockBursty Langmuir-like waves driven by electron beams in Earth's foreshock have properties which are inconsistent with the standard plasma physics paradigm of uniform exponential growth saturated by nonlinear processes. Here it is demonstrated for a specific period that stochastic growth theory (SGT) quantitatively describes these waves throughout a large fraction of the foreshock. The statistical wave properties are inconsistent with nonlinear processes or self-organized criticality being important. SGT's success in explaining the foreshock waves and type III solar bursts suggests that SGT is widely applicable to wave growth in space, astrophysical, and laboratory plasmas.
Document ID
19990063683
Document Type
Reprint (Version printed in journal)
Authors
Cairns, Iver H. (Sydney Univ. Australia)
Robinson, P. A. (Sydney Univ. Australia)
Date Acquired
August 19, 2013
Publication Date
April 12, 1999
Publication Information
Publication: Physical Review Letters
Volume: 82
Issue: 15
ISSN: 0031-9007
Subject Category
Space Radiation
Funding Number(s)
CONTRACT_GRANT: NAG5-6369
Distribution Limits
Public
Copyright
Other