University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, April 11th 2017
12:20 pm:
Speaker: Dr. Andreas Keiling, Space Science Lab, UCB
Subject: Substorms in the Solar System and their Periodicity

Spacecraft observations have established that all magnetized planets in our solar system (Mercury, Earth, Jupiter, Saturn, Uranus, and Neptune) interact strongly with the solar wind and possess well-developed magnetotails. Magnetotails are the site of many dynamic processes critical to the transport of mass, momentum, energy, and magnetic flux. The great differences in solar wind conditions, planetary rotation rates, ionospheric conductivity, and physical dimensions from Mercury’s small magnetosphere to the giant magnetospheres of Jupiter and Saturn provide an outstanding opportunity to extend our understanding of the influence of these factors on magnetotail processes and structure. Among the many differences and similarities, in this presentation I will provide an (sketchy) overview of magnetospheric substorms, together with new results on substorm periodicity.

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