Space Science Reviews

, Volume 132, Issue 2–4, pp 511–527 | Cite as

Electromagnetic Induction Effects and Dynamo Action in the Hermean System

  • Karl-Heinz GlassmeierEmail author
  • Jan Grosser
  • Uli Auster
  • Dragos Constantinescu
  • Yasuhito Narita
  • Stephan Stellmach


Embedded in a large mass density and strong interplanetary magnetic field solar wind environment and equipped with a magnetic field of minor strength, planet Mercury exhibits a small magnetosphere vulnerable to severe solar wind buffeting. This causes large variations in the size of the magnetosphere and its associated currents. External fields are of far more importance than in the terrestrial case and of a size comparable to any internal, dynamo-generated field. Induction effects in the planetary interior, dominated by its huge core, are thought to play a much more prominent role in the Hermean magnetosphere compared to any of its companions. Furthermore, the external fields may cause planetary dynamo amplification much as discussed for the Galilean moons Io and Ganymede, but with the ambient field generated by the dynamo and its magnetic field-solar wind interaction.


Planets Mercury Magnetosphere Magnetospheric currents Electromagnetic induction Dynamo action 


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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Karl-Heinz Glassmeier
    • 1
    Email author
  • Jan Grosser
    • 2
  • Uli Auster
    • 2
  • Dragos Constantinescu
    • 2
  • Yasuhito Narita
    • 2
  • Stephan Stellmach
    • 3
  1. 1.Institut für Geophysik und extraterrestrische PhysikTechnische Universität BraunschweigBraunschweigGermany
  2. 2.Technische Universität zu BraunschweigBraunschweigGermany
  3. 3.Institut für Geophysik, Universität MünsterMünsterGermany

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