Columnar content measurements of the solar-wind turbulence near the sun

Details Columnar content measurements of the solar-wind turbulence near the sun Columnar content measurements of the solar-wind turbulence near the sun

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...199..227c&link_type=abstract

Astrophysical Journal, vol. 199, July 1, 1975, pt. 1, p. 227-236.

Astronomy and Astrophysics

Astrophysics

11

Electron Density (Concentration), Mariner Space Probes, Plasma Turbulence, Solar Wind, Group Velocity, Periodic Variations, Phase Velocity, Plasma Density, Plasma Spectra

Scientific paper

Turbulence in the solar wind near the sun is investigated using records of changes in the integrated electron columnar content along the line of sight to Mariners 6, 7, and 9. The comoving turbulence spectrum is found to be well represented by a power law with an index of about 3.9. The turbulence is shown to decline with heliocentric distance, and the data suggest a region of enhanced turbulence near the sun. The Mariner-9 spectral amplitudes are found to correspond with Zurich sunspot numbers. Implications of the present observations are discussed for contemporary theories on solar-wind heating.

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