Equilibrium and Stability of Prominence Flux Ropes |
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| Authors: | Bryan H Fong Omar A Hurricane Steven C Cowley |
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| Institution: | (1) Advanced Study Program and High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO, 80307-3000, U.S.A.;(2) Lawrence Livermore National Laboratory, P.O. Box 808, L-22, Livermore, CA, 94550, U.S.A.;(3) Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA, 90095-1547, U.S.A. |
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| Abstract: | Realistic models of solar prominence flux ropes are numerically constructed. The models are in 2.5 dimensions, including the effects of non-isothermal temperature, density and gravity, and pressure. Stability of the equilibria to pressure- and gravity-driven instabilities is numerically investigated, using the ballooning formalism of fusion plasma theory. The equilibrium models can become unstable to pressure- and gravity-driven modes at plasma parameters characteristic of prominences. |
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