Physics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsm22b0255a&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SM22B-0255
Physics
2720 Energetic Particles, Trapped, 2756 Planetary Magnetospheres (5443, 5737, 6030), 5443 Magnetospheres (2756), 5737 Magnetospheres (2756)
Scientific paper
The Galileo orbiter recorded the responses of EPD instrument to electrons and protons for about 4 hours prior to and about 20 minutes following its closest approach to Amalthea on orbit 34 at 6:18 SCET on November 5. Energetic electrons penetrating the passive shielding of the EPD sensors complicated the identification and interpretation of responses. However, some facts are clear: a.) there is a significant absorption of 1 to 10 MeV electrons evident in the approximate drift shell of Amalthea; b.) 1 to 2 MeV protons show only a small or possibly non-existent absorption feature in the drift shell; c.) there may be absorption of protons below 1 MeV based on the time-of-flight channels showing a feature which will need further analysis to account for rate-dependent effects. We will evaluate and report on the effective loss and transport rates for electrons and protons at Amalthea.
Armstrong Thomas P.
McEntire R.
Miller Lance L.
Wadley S.
Williams David
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