Electric field and plasma observations near the magnetopause and bow shock during a rapid compression

Details Electric field and plasma observations near the magnetopause and bow shock during a rapid compression Electric field and plasma observations near the magnetopause and bow shock during a rapid compression

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217...99a&link_type=abstract

In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 99-104 (SEE N85-24544 14-46)

Computer Science

Bow Waves, Electric Fields, Magnetopause, Plasma Compression, Shock Waves, International Magnetospheric Study, International Sun Earth Explorer 1, International Sun Earth Explorer 2, Interplanetary Magnetic Fields, Magnetoplasmadynamics

Scientific paper

A fast compressional motion of the magnetopause resulting from the interaction of an interplanetary shock and the Earth's magnetosphere is discussed. The ISEE-1 and 2 satellites were in the frontside magnetosphere before the shock. A magnetosonic wave front, the magnetopause, and the bow shock passed them in a very short time. By a combination of electric and magnetic field data it is possible to determine the magnetosonic and the magnetopause velocity, in good agreement with magnetic time delay measurements. It is possible to establish that during this compressional motion the E x B velocity was towards the magnetopause from both sides, 75 km/sec from the Earth side and 50 km/sec from the Sun side. A power conversion flux close to +400 W/sqKm was determined for the magnetopause. A sunward potential drop of 135 to 280 V was detected near the bow shock, with power conversion flux negative, and 10% of the solar wind kinetic energy flux.

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