Sunward flow in Jupiter's magnetosheath

Details Sunward flow in Jupiter's magnetosheath Sunward flow in Jupiter's magnetosheath

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7...25s&link_type=abstract

Geophysical Research Letters, vol. 7, Jan. 1980, p. 25-28.

Physics

1

Flow Distribution, Jupiter Atmosphere, Magnetohydrodynamic Flow, Magnetosheath, Planetary Magnetospheres, Plasma Sheaths, Solar Wind, Bow Waves, Compressibility Effects, Radiation Pressure, Shock Wave Propagation, Voyager Project, Jupiter, Magnetosheath, Flow, Bow Shock, Solar Wind, Plasmas, Magnetopause, Voyager 1, Motion, Velocities, Pressure, Flux, Distance, Patterns, Histograms, Streamlines, Models, Analysis, Voyager 2, Particles, Protons

Scientific paper

The position of Voyager crossings of Jupiter's bow shock show a dependence on solar wind pressure to the -1/3 power. This dependence is used to calculate typical bow shock speeds of 50 km/s from Voyager solar wind plasma data. Since the bow shock and magnetopause move approximately in unison in response to solar wind pressure changes, the resulting movement of the magnetosheath at a sizeable fraction of the solar wind speed leads to reversed, sunward flow in large portions of the dayside region when the boundaries are expanding. Voyager 1 plasma data show evidence of such reversed flow.

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