Is Jupiter's magnetosphere like a pulsar's or earth's

Details Is Jupiter's magnetosphere like a pulsar's or earth's Is Jupiter's magnetosphere like a pulsar's or earth's

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ssrv...17..857k&link_type=abstract

Space Science Reviews, vol. 17, Sept. 1975, p. 857-883.

Astronomy and Astrophysics

Astronomy

10

Astronomical Models, Atmospheric Models, Jupiter Atmosphere, Planetary Magnetospheres, Pulsar Magnetospheres, Convective Flow, Planetary Ionospheres, Plasma Interactions, Plasmapause, Polar Caps, Radial Flow, Solar Wind

Scientific paper

Two possible models of Jupiter's magnetosphere are compared: a pulsar-like radial-outflow model and an earth-like convection model. For the radial-outflow model, Pioneer 10 data are used to estimate the total particle and energy fluxes which must be provided by Jupiter (or its magnetosphere within the Alfven radius) to power the outflow. The convection model is considered with emphasis on field-line reconnection, convection flow time, and the location of Jupiter's magnetopause and plasmapause. The imposition of corotation on Jupiter's ionosphere, magnetosphere, and upper atmosphere is investigated in terms of an aligned rotator with either type of magnetosphere. It is concluded that: (1) Jupiter's convection flow is likely to be super-Alfvenic in its outer magnetosphere, (2) Jupiter may have earth-like magnetopauses near local dawn during substorms, (3) the angular-momentum flux that can diffuse upward through Jupiter's polar-cap atmospheres seems insufficient to impose corotation upon a radial outflow or convective return flow, and (4) neither model can be definitively accepted.

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