Significant Magnetosheath Disturbances and Their Upstream Counterparts

Details Significant Magnetosheath Disturbances and Their Upstream Counterparts Significant Magnetosheath Disturbances and Their Upstream Counterparts

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agusmsh41a..13k&link_type=abstract

American Geophysical Union, Spring Meeting 2004, abstract #SH41A-13

Physics

2109 Discontinuities, 2134 Interplanetary Magnetic Fields, 2154 Planetary Bow Shocks, 2164 Solar Wind Plasma, 2728 Magnetosheath

Scientific paper

We have identified about 50 fast, forward-propagating interplanetary shocks observed by the Wind spacecraft in the time when Interball-1/Magion-4 measurements were available in the solar wind or in the magnetosheath in order to investigate the influence of shock parameters on disturbances following the shock arrival near to the Earth. We have determined the angle between shock front normal and the interplanetary magnetic field (IMF) direction and jumps of plasma and magnetic field parameters across the shock and tried to find their correlation with corresponding parameters in the magnetosheath. Multipoint observations allow us to compare the shock speeds computed from the jump conditions and from the propagation time. These speeds agree rather well in the solar wind, whereas we have found a significant difference in the magnetosheath.

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