Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.322..201w&link_type=abstract
Astrophysics and Space Science, Volume 322, Issue 1-4, pp. 201-204
Astronomy and Astrophysics
Astrophysics
3
Laboratory Astrophysics, Kelvin-Helmholtz Instability, Magnetized Plasmas
Scientific paper
The solar wind crosses the magnetic field of the earth and mixes with the plasma of terrestrial origin. The fast particles from the solar wind are responsible for satellite damage, communication disruptions and power blackouts on earth. A better understanding of this penetration process is needed in order to be able to accurately predict it. One experiment attempting to accomplish this was performed at the Nevada Terawatt Facility. This experiment used a short-pulse laser to produce a plasma plume and a pulsed-power generator to independently produce a magnetic field. The magnetic field actuated a sheared flow along the boundary of the plasma plume which caused a Kelvin-Helmholtz instability similar to that found in the interaction between the solar wind and the magnetosphere that leads to the penetration of the fast particles. The instability produced in the experiment will be discussed along with its relevance to the solar wind/magnetosphere interaction.
Esaulov Andrey
Haboub Abdelmoula
Martinez David
Neff Stephan
Plechaty Christopher
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