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Title: Planetary Dynamos: Investigations of Saturn and Ancient Mars

Magnetic field observations by spacecraft missions have provided vital information on planetary dynamos. The four giant planets as well as Earth, Mercury and Ganymede have observable magnetic fields more »generated by active dynamos. In contrast, Moon and Mars only have remanent crustal fields from dynamo action in their early histories. A variety of magnetic field morphologies and intensities can be found in the solar system. We have found that some of the differences between planetary magnetic fields can be explained as the result of the presence of boundary thermal variations or stably-stratified layers. In this talk, I will discuss how dynamos are affected by these complications and discuss the implications for Mars’ magnetic dichotomy and Saturn’s extremely axisymmetric magnetic field.« less
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Title: Planetary Dynamos: Investigations of Saturn and Ancient Mars
Authors:
Publication Date: 2012-04-18
OSTI Identifier: 1043281
Resource Type: Multimedia
Resource Relation: Conference: Wednesday Colloquium Series, Princeton Plasma Physics Laboratory, Princeton, New Jersey, presented on April 18, 2012
Research Org: PPPL (Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States))
Sponsoring Org: USDOE Office of Science (SC)
Subject: 79 ASTRONOMY AND ASTROPHYSICS ; Saturn ; Ancient Mars
Country of Publication: United States
Language: English
Run Time:
System Entry Date: 2016-06-27