Physics
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91.8742b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Aug. 1, 1986, p. 8742-8748. DOE-NASA-supported research.
Physics
28
Energetic Particles, Mercury (Planet), Planetary Magnetospheres, Transport Theory, Atmospheric Models, Magnetic Storms, Periodic Variations, Planetary Magnetic Fields
Scientific paper
A qualitative model of substorm processes in the Mercury magnetosphere is presented based on Mariner 10 observations obtained in 1974-1975. The model is predicated on close analogies observed with the terrestrial case. Particular emphasis is given to energetic particle phenomena as observed by Mariner on March 29, 1974. The suggestion is supported that energetic particles up to about 500 keV are produced by strong induced electric fields at 3 to about 6 Mercury radii in the Hermean tail in association with substorm neutral line formation. The bursts of energetic particles produced are, in this model, subsequently confined on closed field lines near Mercury and drift adiabatically on quasi-trapped orbits for many tens of seconds. Such gradient and curvature drift of the particles can explain prominent periodicities of 5-10 s seen in the Mariner for greater than 170-keV electron flux profiles.
Baker Daniel N.
Eraker J. H.
Simpson André J.
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