Physics
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..144z&link_type=abstract
Soviet Astronomy Letters, Vol. 18, p. 144; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 4, April 1992, p. 38
Physics
Charged Particles, Ionospheric Heating, Jupiter Atmosphere, Particle Acceleration, Planetary Ionospheres, Plasma-Electromagnetic Interaction, Atmospheric Physics, Planetary Magnetic Fields
Scientific paper
A mechanism for heating charged particles that is associated with the potential drop along the Jovian magnetic flux lines is presented. This mechanism is based on the well-known effect wherein the resistance of a partially ionized plasma increases when the current is unstable. A region of high resistance along the magnetic field is formed in the upper ionosphere higher than the altitude maximum of the electron concentration in the base of the magnetic flux tube of the satellite Io. In the case of parameters typical for the upper ionosphere, the resistance increases by seven orders of magnitude. The potential drop in this region results in particle acceleration up to several MeV. The plasma is heated up to 10 KeV due to Joule dissipation and Buneman turbulence.
Shaposhnikov Vladimir E.
Zaitsev Valerii V.
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