Physics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.3741r&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 67, Dec. 30, 1991, p. 3741-3744.
Physics
62
Compressibility Effects, Incompressible Fluids, Magnetohydrodynamics, Plasma Turbulence, Solar Wind, Current Sheets, Heliosphere, Interplanetary Magnetic Fields, Plasma Density, Plasma Pressure, Solar Corpuscular Radiation, Spectral Methods
Scientific paper
A unified interpretation of observations of interplanetary fluctuations is presented in terms of nearly incompressible magnetohydrodynamics. Incompressive effects explain the rapid evolution of turbulence in slow wind containing the heliospheric current sheet. The relative constancy of the spectrum of 'inward propagating' fluctuations compared to the rapid decline in 'outward' fluctuations results from incompressive spectral transfer combined with strong dissipation of the outward fluctuations. Secondary compressive effects account for nearly pressure-balanced structures and the density fluctuation levels.
Ghosh Sanjoy
Goldstein Melvyn L.
Matthaeus William H.
Roberts Daniel A.
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