Physics
Scientific paper
Oct 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.5813n&link_type=abstract
Journal of Geophysical Research, vol. 84, Oct. 1, 1979, p. 5813-5816.
Physics
Jupiter (Planet), Magnetic Equator, Planetary Magnetospheres, Proton Belts, Europa, Io, Natural Satellites, Proton Energy, Jupiter, Magnetosphere, Equatorial Region, Protons, Flow, Models, Satellites, Europa, Ganymede, Io, Flux, Pioneer 10, Density
Scientific paper
The magnitude of the strong flow of 1.79-2.15 MeV protons away from the Jovian magnetic equator is used to estimate the residence lifetimes of these protons in the equatorial source region. The lifetime is approximately 1.2 x 10 to the 5th/(R - 5.8)-squared sec, where R is distance in Jovian radii from Jupiter's center to the equatorial region of interest. At Europa and Ganymede (but not at Io) this lifetime is 1-2 orders of magnitude shorter than sweepup lifetimes by the moons. The fluxes of these protons, integrated over the observed range from 6 to 40 Jovian radii, amount to 3 x 10 to the 23rd particles per second, per degree of longitude and carry away about 9 x 10 to the 17th ergs per second per degree.
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