The magnetic field of Uranus

Details The magnetic field of Uranus The magnetic field of Uranus

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9215329c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Dec. 30, 1987, p. 15329-15336.

Astronomy and Astrophysics

Astronomy

82

Astronomical Models, Planetary Magnetic Fields, Spherical Harmonics, Uranus (Planet), Dipole Moments, Magnetic Field Configurations, Quadrupoles, Spaceborne Astronomy, Voyager 2 Spacecraft

Scientific paper

A spherical harmonic model of the planetary magnetic field of Uranus is obtained from the Voyager 2 encounter observations using generalized inverse techniques which allow partial solutions to complex (underdetermined) problems. The Goddard Space Flight Center "Q3" model is characterized by a large dipole tilt (58.6°) relative to the rotation axis, a dipole moment of 0.228 G RU3, and an unusually large quadrupole moment. Characteristics of this complex model magnetic field are illustrated using contour maps of the field on the planet's surface and discussed in the context of possible dynamo generation in the relatively poorly conducting "ice" mantle.

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