Interplanetary-magnetic-field component normal to the magnetopause

Details Interplanetary-magnetic-field component normal to the magnetopause Interplanetary-magnetic-field component normal to the magnetopause

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ge%26ae..24...16a&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 24, Jan.-Feb. 1984, p. 16-21. In Russian.

Computer Science

1

Interplanetary Magnetic Fields, Magnetohydrodynamic Flow, Magnetopause, Solar Wind, Earth Magnetosphere, Incompressible Flow, Maxwell Equation, Plasma Potentials, Reynolds Number

Scientific paper

The MHD approximation is used to analyze the flow of solar-wind magnetoplasma past the magnetosphere. An exact solution is obtained for an incompressible fluid with homogeneous isotropic conductivity, given an arbitrary mutual orientation of the magnetic-field vector and the direction of the solar-wind stream. The frozen-in condition is neglected, which makes it possible to calculate the IMF component normal to the magnetopause (Bn), determined by the magnetic Reynolds number (Rm), as well as to calculate the difference of potentials (delta Phi) applied to the magnetopause. Observed values of delta Phi = 50-10 kV and Bn = 2.0-0.4 nT can be explained if Rm is taken to be equal to 100-10,000 for the solar-wind plasma.

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