Modeling of Flare-type Phenomena in Laboratory Experiments with Current Sheets

Details Modeling of Flare-type Phenomena in Laboratory Experiments with Current Sheets Modeling of Flare-type Phenomena in Laboratory Experiments with Current Sheets

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..703..431f&link_type=abstract

PLASMAS IN THE LABORATORY AND IN THE UNIVERSE: New Insights and New Challenges. AIP Conference Proceedings, Volume 703, pp. 431

Mathematics

Logic

3

Laboratory Studies Of Space- And Astrophysical-Plasma Processes, Magnetized Plasmas

Scientific paper

In a context of laboratory modeling of astrophysical phenomena, the results are presented on a progress in observations of current sheet formation in a variety of 3D magnetic configurations with some topological singularities. The characteristic features of current sheets are governed by a structure of a 3D configuration, and the sheet can form a twisted surface; its angular orientation is controlled by a local value of the transverse magnetic field gradient. Plasma density inside the sheet decreases in the presence of the longitudinal magnetic field component, displaying the transition to the behaviour of uncompressible plasma. Flare-type events can be associated with a rapid current sheet disruption when a large amount of magnetic energy is liberated. The principal features of flare phenomena: rapid change in the magnetic field topology, intense plasma heating, generation of plasma flows, and accelerated electrons, have been observed in the course of current sheet disruption in the laboratory conditions.

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