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Laboratory simulation of solar magnetic flux rope eruptions

Published online by Cambridge University Press:  26 August 2011

S. K. P. Tripathi  and
W. Gekelman
S. K. P. Tripathi
Affiliation:
Physics & Astronomy, University of California at Los Angeles, Los Angeles, California 90095, USA email: tripathi@physics.ucla.edu
W. Gekelman
Affiliation:
Physics & Astronomy, University of California at Los Angeles, Los Angeles, California 90095, USA email: gekelman@physics.ucla.edu
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Abstract

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A laboratory plasma experiment has been constructed to simulate the eruption of arched magnetic flux ropes (AMFRs e.g., coronal loops, solar prominences) in an ambient magnetized plasma. The laboratory AMFR is produced using an annular hot LaB6 cathode and an annular anode in a vacuum chamber which has additional electrodes to produce the ambient magnetized plasma. Two laser beams strike movable carbon targets placed behind the annular electrodes to generate controlled plasma flows from the AMFR footpoints that drives the AMFR eruption. The experiment operates with a 0.5 Hz repetition rate and is highly reproducible. Thus, time evolution of the AMFR is recorded in three-dimensions with high spatio-temporal resolutions using movable diagnostic probes. Experimental results demonstrate outward expansion of the AMFR, release of its plasma to the background, and excitation of fast magnetosonic waves during the eruption.

Keywords

magnetic flux ropeprominencecoronal loopcoronal mass ejectionsflares
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 483 - 486
Copyright
Copyright © International Astronomical Union 2011

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