Interaction between a line current and a two-dimensional constant-alpha force-free field - an analytical model for quiescent prominences

Details Interaction between a line current and a two-dimensional constant-alpha force-free field - an analytical model for quiescent prominences Interaction between a line current and a two-dimensional constant-alpha force-free field - an analytical model for quiescent prominences

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208..261a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 261-270.

Physics

Condensed Matter

34

Force-Free Magnetic Fields, Line Current, Solar Corona, Solar Magnetic Field, Solar Prominences, Condensed Matter Physics, Dark Matter, Electric Current, Magnetohydrodynamics

Scientific paper

A simple analytical model describing the equilibrium of a massive line current submitted to the action of a vertical gravitational field and of a two-dimensional constant-alpha force-free magnetic field is described. This model is then applied to the problem of the magnetic support of quiescent prominences. It is shown in particular that the introduction of a background force-free field instead of a potential one may be a clue for solving difficulties which appear when some previous models are confronted with the observations.

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