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Goldstein, M.L.; Smith, R.A.; Papadopoulos, K.
National Aeronautics and Space Administration, Greenbelt, MD (USA). Goddard Space Flight Center1978
National Aeronautics and Space Administration, Greenbelt, MD (USA). Goddard Space Flight Center1978
AbstractAbstract
[en] A set of rate equations including strong turbulence effects and anomalous resitivity are solved using parmeters which model several type 3 solar bursts. Exciter distributions observed at 1 AU are excitation of the linear bump-in-tail instability, amplifying Langmuir waves above the threshold for the oscillating two-stream instability (OTSI). The OTSI and the attendant anomalous resistivity produce a rapid spectral transfer of Langmuir waves to short wavelengths, out of resonance with the electron exciter. Further energy loss of the beam is thus precluded. The various parameters needed to model the bursts are extrapolated inside 1 AU with similar results. Again, the OTSI is excited and decouples the electron beam from the Langmuir radiation. Reabsorption of the Langmuir waves by the beam is shown to be unimportant in all cases, even at 0.1 AU. The theory provides a natural explanation for the observed relationship between radio flux and the electron flux
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Source
Dec 1978; 38 p; Available from NTIS. PC A03/MF A01
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Report
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Country of publication
BEAM-PLASMA SYSTEMS, BUMP-IN-TAIL INSTABILITY, ELECTRIC CONDUCTIVITY, ELECTRONS, ENERGY LOSSES, ENERGY SPECTRA, MAGNETOHYDRODYNAMICS, MATHEMATICAL MODELS, NONLINEAR PROBLEMS, PLASMA WAVES, RADIATION FLUX, RADIOWAVE RADIATION, SOLAR RADIATION, SOLAR RADIO BURSTS, STABILITY, TURBULENCE, TWO-STREAM INSTABILITY
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