Physics
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992jgr....97.2973k&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 97, no. A3, March 1, 1992, p. 2973-2983.
Physics
68
Ampte (Satellites), Earth Magnetosphere, Ion Injection, Magnetic Storms, Plasma Layers, Plasma-Particle Interactions, Energetic Particles, Geomagnetic Tail, International Sun Earth Explorers, Magnetometers, Pressure Gradients, Solar Wind
Scientific paper
Data from the CHEM instrument on AMPTE CCE, data from the 3D plasma instrument and the SULEICA instrument on AMPTE IRM, and magnetometer data from both spacecraft are used to determine the particle pressure and total pressure as a function of radial distance in the plasma sheet for periods before and after the onset of substorm-associated ion enhancements over the range 7-19 RE. Events were chosen that occurred during times of increasing magnetospheric activity, as determined by an increasing AE index, in which a sudden increase, or 'injection', of energetic particle flux is observed. It is shown that the simultaneous appearance of energetic particles and changes in the magnetic field results naturally from pressure balance and does not necessarily indicate that the local changing field is accelerating the particles.
Baumjohann Wolfgang
Hamilton Douglas C.
Kistler Lynn M.
Moebius Eberhard
Paschmann Goetz
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