Possible production mechanism for high-speed solar-wind streams

Details Possible production mechanism for high-speed solar-wind streams Possible production mechanism for high-speed solar-wind streams

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pazh....2..200k&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal, vol. 2, Apr. 1976, p. 200-206. In Russian.

Physics

Magnetohydrodynamics, Solar Physics, Solar Wind Velocity, Lines Of Force, Magnetic Field Configurations, Plasma Density, Solar Corona, Solar Magnetic Field

Scientific paper

Solar-wind properties are analyzed in the framework of a hydrodynamic approximation for radial and nonradial expansion in order to investigate the sources and formation conditions of high-speed streams. The results suggest that the sources of these streams are large-scale coronal regions with nonradially diverging, open magnetic-field lines. It is shown that large-scale nonradial expansion near the sun (within 1.3 to 3 solar radii) can simultaneously increase the velocity and decrease the density of the solar wind near earth's orbit, thus giving rise to the high-speed streams.

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