Current confinement in solar coronal loops

Details Current confinement in solar coronal loops Current confinement in solar coronal loops

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...73...89c&link_type=abstract

Solar Physics, vol. 73, Sept. 1981, p. 89-103. Research supported by the Consiglio Nazionale delle Ricerche and NATO.

Physics

10

Coronal Loops, Magnetohydrodynamic Stability, Plasma Currents, Solar Physics, Atmospheric Models, Perturbation Theory, Propagation Modes

Scientific paper

Solar coronal loops are considered as regions of localized current flows, in order to investigate the consequences of current confinement. The physical and observational bases for this assumption are presented, and it is shown that a proper choice of the current profile permits the quantitative treatment of loop equilibrium structure along with MHD and resistive stability properties. Regions of absolute stability against ideal kink modes are found, and explicit growth rates for the tearing-mode instability are computed. The possible relevance of other resistive effects is considered, and an outline is given of the importance of the small-scale geometry of the magnetic field outlined.

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