Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...325..891b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 325, Feb. 15, 1988, p. 891-894.
Astronomy and Astrophysics
Astrophysics
1
Plasma Currents, Plasma Pressure, Solar Atmosphere, Solar Magnetic Field, Solar Wind, Convection Currents, Coronal Loops, Magnetic Field Configurations, Magnetic Flux
Scientific paper
Plasma pressure near the feet of flux tubes in the solar atmosphere can drive a large, bidirectional current along the entire length of the flux tubes. In the corona, where the plasma pressure is negligible, this current is parallel to the field lines. The pressure-driven parallel current, which is called the Pfirsch-Schlüter current, can cause loss of equilibrium and disruptive phenomena. Here the author calculates the parallel current associated with the equilibrium of a plasma in magnetic and gravitational fields. The only major restriction on the calculation is the assumption of the existence of an enthalpy function.
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