Mathematics – Logic
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979p%26ss...27..821h&link_type=abstract
Planetary and Space Science, vol. 27, June 1979, p. 821-840.
Mathematics
Logic
4
Geomagnetic Micropulsations, Magnetic Signatures, Satellite Observation, Synchronous Satellites, Ats 6, Electric Fields, Geosynchronous Orbits, Plasma Diagnostics, Ring Currents, Synchronous Meteorological Satellite
Scientific paper
The paper describes the observation of a magnetic pulsation with a period of 55 sec, recorded at geostationary orbit by three satellites in the local time sector 2100-2400. The pulsation had a large compressional magnetic component which appeared to be balanced by pressure fluctuations in the hot ring current plasma which were in antiphase with the magnetic variations. The wave is found to be a second harmonic field line resonance and to have a very short E-W wavelength. The most probable source for this wave is a bounce resonant interaction with ring current protons and the characteristics of this wave are in many ways similar to those of giant pulsations observed on the ground.
Barfield J. N.
Hughes Jeffrey W.
Mauk Barry H.
McPherron Robert L.
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