Other
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95..967m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Feb. 1, 1990, p. 967-975.
Other
26
Earth Magnetosphere, Geomagnetic Pulsations, International Sun Earth Explorers, Electric Fields, Energetic Particles, Extremely Low Radio Frequencies
Scientific paper
A long-lasting Pc 5 pulsation at the dawn flank of the magnetosphere is studied using particle and field instrumentation from the ISEE 1 and 2 satellites. Electric field and particle modulation signatures were clearer than magnetic field variations, consistent with the satellites' position in latitude near the equatorial node of a fundamental resonance. Pulsation flow velocities along the ISEE 1 trajectory were calculated from particle characteristics using data from several instruments and from electric and magnetic field data. These flow velocities were all consistent with each other, but the velocities derived from plasma and energetic particle observations were a factor of 2.5 larger than velocities derived from the fields data. In contrast to observations of pulsations during magnetic storms, which often involve resonant or gyrating particle behavior, particles at all energies sampled (10 eV to 200 keV) appeared to respond passively to the pulsation throughout most of the period of interest.
Cattell Cynthia A.
Engebretson Mark J.
Lundin Richard
Mitchell Donald G.
Williams Jimmy D.
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