Physics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..134..123o&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 134, July 1991, p. 123-144. Research supported by DGICYT, SERC, and EEC.
Physics
1
Magnetic Field Configurations, Solar Magnetic Field, Solar Prominences, Two Dimensional Models, Plasma Layers, Plasma Temperature, Solar Corona
Scientific paper
Analytical approximations are here used to study the effects of different external magnetic configurations on the half-width, mass, and internal magnetic structure of a quiescent solar prominence, modeled as a thin vertical sheet of cool plasma. A zeroth-order model is used to analyze the effects produced by a potential coronal field or a constant-alpha force-free field. This model allows us to obtain the half-width and mass of the prominence for different values of the external field, pressure and shear angle. The effects of these external magnetic configurations on a two-dimensional model proposed by Ballester and Priest (1987) are studied. The main effects are a change of the half-width with height, an increase of the mass, a decrease of the magnetic field strength with height and a change in the shape of the magnetic field lines.
Ballester Jose Luis
Oliver Ramon
Priest Eric R.
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