Energy distribution of electrons with E less than 800 eV in the areomagnetosphere

Details Energy distribution of electrons with E less than 800 eV in the areomagnetosphere Energy distribution of electrons with E less than 800 eV in the areomagnetosphere

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991p%26ss...39..147s&link_type=abstract

(Colloquium on Phobos-Mars Mission, Paris, France, Oct. 23-27, 1989, Proceedings. A91-29558 11-91) Planetary and Space Science (

Computer Science

4

Energy Distribution, Magnetopause, Mars Atmosphere, Phobos, Planetary Magnetospheres, Plasma Sheaths, Electron Energy, Electron Gas, Electrostatic Waves, Planetary Magnetotails, Solar Wind, Mars, Spacecraft Observations, Phobos 2 Mission, Harp Isntrument, Energy, Distribution, Electrons, Magnetosphere, Intensity, Downstream, Flux, Bow Shock, Magnetosheath, Solar Wind, Magnetopause, Boundaries, Plasmasheet, Magnetotail, Plasmasheath

Scientific paper

Some of the features of energy distributions for the electron fluxes recorded in the Martian magnetosphere with the Hyperbolic Retarding Potential Analyzer (HARP) instrument installed aboard the Phobos 2 spacecraft are presented. The measurements were carried out over an energy/charge from about 0.3 eV to about 800 eV in eight independent angular sectors about 20 deg by 10 deg covering the FOV about 180 deg in the X-Z plane in the antisolar directions. It is concluded that the electron energy distributions essentially change after crossing the bow shock, magnetopause and plasmasheet boundaries, each of these regions being characterized by specific electron energy distributions. The electron energy distributions always have two maxima in the magnetosheath and it is therefore conceivable that such energy distributions give some evidence of different interactions between two components of the solar wind electron gas and the electrostatic wave turbulences. Electrons with an energy peak of about 200 to 300 eV are observed in the planetosheath of the magnetotail.

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