Physics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ssrv...32...43g&link_type=abstract
(Slovenska Akademia Vied, IAU, and COSPAR, Study of Travelling Interplanetary Phenomena Workshop on Shock Waves in the Solar Cor
Physics
16
Earth Magnetosphere, Interplanetary Magnetic Fields, Shock Wave Interaction, Solar Terrestrial Interactions, Solar Wind, Bow Waves, Magnetopause
Scientific paper
Travelling interplanetary shock wave interactions with the bow shock-magnetosphere system are considered for the general case of an IMF that is oblique to the sun-planetary axis, so that the interplanetary shock is neither parallel nor perpendicular. It is found that an ensemble of shocks is produced after the interaction, for a representative range of shock Mach numbers. It is also shown that, in the presence of an IMF that is inclined by 45 deg to the radial solar wind velocity vector, the R and S waves are weak. To the first degree of approximation, the situation is similar to the previously studied normal perpendicular case, and the validity of the one-dimensional consideration of the nonstationary interaction of travelling interplanetary shock waves with the bow shock-magnetosphere system is proved. A possible geomagnetic effect during the global perturbation of the sudden storm commencement or sudden ionospheric disturbance type is discussed.
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