Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367..321r&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 367, Jan. 20, 1991, p. 321-332. Research supported by SERC.
Astronomy and Astrophysics
Astrophysics
15
Current Sheets, Photosphere, Solar Corona, Solar Magnetic Field, Solar Prominences, Boundary Value Problems, Magnetohydrodynamics, Solar Gravitation
Scientific paper
The model for the support of a solar prominence in a twisted flux tube by Priest et al. (1989) is here extended to consider large deviations of the tube from cylindrical symmetry. The prominence is modeled as a finite current sheet with mass which is locally free from singularities in the magnetic field. Analytical solutions are found to the nonlinear force-free equations for the structure around the prominence for two functional forms of the field component parallel to the prominence axis. An associated mixed boundary-value problem is also solved in which the prominence is connected at its base to the photosphere, and the normal magnetic field components along the prominence and the photosphere are imposed.
Amari Tahar
Priest Eric R.
Ridgway C.
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