Physics – Space Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsa31b..03h&link_type=abstract
American Geophysical Union, Spring Meeting 2007, abstract #SA31B-03
Physics
Space Physics
2459 Planetary Ionospheres (5435, 5729, 6026), 2756 Planetary Magnetospheres (5443, 5737, 6033), 5421 Interactions With Particles And Fields, 5440 Magnetic Fields And Magnetism, 6225 Mars
Scientific paper
We present observations of electrons above the Martian night side, using data from the Mars Global Surveyor Electron Reflectometer. These electron observations allow us to investigate fundamental space physics at Mars. Electron angular distributions allow us to understand the constantly evolving Martian magnetic field topology. Energized electron distributions observed in remanent magnetic field cusps and near crossings of the induced magnetotail current sheet inform us about Martian physical processes which may be analogous to those observed in the terrestrial auroral zone, magnetospheric cusp, and plasma sheet. Anisotropic electron distributions commonly observed near the current sheet (but also in other regions) allow us to trace magnetic connectivity to the solar wind by tracking the anisotropic suprathermal electron population from the solar wind to the Martian night side (as previously demonstrated using Phobos data). Detailed investigation of electron angular and energy distributions may also allow us to investigate other fundamental space physics processes, including wave particle interactions.
Brain David Andrew
Halekas Jasper S.
Lin Robert P.
Luhmann Janet G.
Mitchell David Leroy
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