Physics
Scientific paper
Dec 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...10127453c&link_type=abstract
Journal of Geophysical Research, Volume 101, Issue A12, p. 27453-27458
Physics
6
Magnetospheric Physics: Planetary Magnetospheres, Planetology: Fluid Planets: Magnetic Fields And Magnetism, Planetology: Fluid Planets: Magnetospheres, Planetology: Solar System Objects: Jupiter
Scientific paper
A spherical harmonic model of the planetary magnetic field of Jupiter is obtained from the Ulysses encounter observations. The magnetic field in the Jovian magnetosphere is represented using a degree and order 3 spherical harmonic for the planetary (``internal'') field, and an explicit model of the magnetodisc for the field (``external'') due to distributed currents. The model is obtained by partial solution of the underdetermined inverse problem using generalized inverse techniques. Dipole, quadrupole, and a subset of the octupole spherical harmonic coefficients are determined and compared with those obtained using Voyager and Pioneer observations. The model requires a less intense magnetodisc current, in early 1992, compared with that observed during the Voyager 1 encounter in 1979 and the Pioneer encounters of 1973 and 1974.
Acuña Mario Humberto
Connerney Jack E. P.
Ness Norman F.
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